Brickellia desertorum is a species of flowering plant in the daisy family known by the common names desert brickellbush and desert brickellia. It is native to Mexico, Central America, the West Indies, and the southwestern United States (the Mojave and Sonoran Deserts of California, Nevada, and Arizona). Brickellia desertorum is a densely branching shrub with hairy stems growing to 1. 5 metres (4. 9 ft) tall. The small, toothed, oval-shaped leaves are up to 1. 2 centimeters long. The inflorescences at the end of stem branches contain clusters of flower heads, each about a centimeter long and lined with greenish, purplish, or yellowish phyllaries. At the tip of the head are 8 to 12 tubular disc florets.

Brickellia frutescens (shrubby brickellbush) is a North American species of flowering plant in the daisy family. It is native to desert regions of Arizona, southern Nevada, southern California, and Baja California. Brickellia frutescens is a shrub up to 60 cm (2 feet) tall. It is highly branched, with many small purple flower heads.

Brickellia incana is a North American species of flowering plant in the daisy family known by the common name woolly brickellbush. It is native to the Mojave Desert and Sonoran Desert in the southwestern United States, in California, Nevada, and Arizona. Brickellia incana is a shrub growing in a spherical clump on the sandy desert floor, 40 centimeters to 1 meter tall. The leaves are gray-green to white with a thin coat of woolly fibers, oval in shape and up to 3 centimeters long.

Brickellia knappiana (Knapp brickellbush) is a North American species of flowering plants in the daisy family. It grows in desert mountain ranges in southern California (Inyo, San Bernardino, and San Diego Counties) and southern Nevada (Nye and Clark Counties). Brickellia knappiana is a shrub up to 200 cm (80 inches) tall. It produces many small flower heads with white disc florets but no ray florets.

Brickellia longifolia (longleaf brickellbush) is a shrub in the (sunflower family). It is found in the Colorado Plateau and Canyonlands region of the southwestern United States, in Arizona, Utah, Nevada, and western Colorado. :139Some authors consider the closely related Mojave Desert plants as a variety of B. longifolia but others recognize it as a distinct species, B. multiflora. Growth pattern. Brickellia longifolia is a densely branched shrub from 3 to 6 feet (0. 91 to 1. 83 m) tall. :139Leaves and stems. Narrow, stalkless leaves are 3-8 to 4 3-4 inches (0. 95 to 12. 07 cm) long and taper to a point. :139Inflorescence and fruit. Brickellia longifolia blooms from June to September. :139 Small green flowers are in clusters of 3-5 per head, with only disk flowers, and many clusters on a stalk that is elongated from the top of each branch. :139Habitat and range. It can be found in moist areas near seeps and riparian areas] in Southern Utah, with occurrences from California to Arizona. :139

Brickellia microphylla is a North American species of shrubs in the daisy family, known as the littleleaf brickellbush. It is widespread across much of the western United States and Mexico from Baja California east to New Mexico and north as far as Washington, Idaho, and Wyoming. Brickellia microphylla is a shrub up to 70 cm (28 inches) tall. It produces many small, yellow flower heads, often clumped together at the ends of branches.

Brickellia oblongifolia (Mojave brickellbush) is North American species of plants in the sunflower family. It is widespread across arid and semi-arid regions in the western United States and Canada, from British Columbia south to southern California, Arizona, and New Mexico. Brickellia oblongifolia is a perennial herb of subshrub up to 60 cm (24 inches) tall, growing from a woody caudex. Flower heads sometime appear one at a time, sometimes in groups of several, each head cream-colored or pale yellow-green, containing disc florets but no ray florets.

Brodiaea jolonensis is a species of flowering plant in the cluster-lily genus known by the common name chaparral brodiaea. It is native to the coast and coastal mountain ranges of the southern half of California and northern Baja California. It is a perennial producing an flower cluster up to about 15 centimeters tall bearing blue-purple flowers on pedicels a few centimeters long. Each flower has six curving petals between 1 and 2 centimeters in length. The center of the flower contains three fertile stamens ringed with three prominent sterile stamens called staminodes.

Brodiaea orcuttii is a species of flowering plant in the cluster-lily genus known by the common name Orcutt's brodiaea. It is native to southern California, mainly San Diego County, where it is an uncommon species. Its range probably extends into Baja California. It is a perennial producing an flower cluster up to 25 centimeters tall which bears flowers on pedicels each a few centimeters long. The flower has six purple petals each between 1 and 2 centimeters long. This is the only brodiaea that lacks staminodes.

Bromus arizonicus is a species of brome grass known by the common name Arizona brome. It is native to the southwestern United States and Baja California, where it grows in many types of grassy valley and desert habitat. It is an annual grass growing 40 to 90 centimeters tall with an open, branching flower cluster. The spikelets are flat and hairy and have awns up to 1.5 centimeters long.

Buddleja utahensis is a species of Buddleja endemic to the southwestern United States (northwest Arizona, eastern California, southern Nevada, and southwestern Utah), where it is known by the common names Utah butterfly bush and Panamint butterfly bush. Named and described by Coville in 1892, the shrub favours limestone outcrops at elevations of 700-2000 m, where it is often found in association with Joshua trees. B. utahensis is a compact, dwarf dioecious shrub reaching 0. 3-1. 0 m in height. The bark is rimose and greyish, while the plant structure is characterized by persistent naked twigs. The younger branches are terete, bearing subsessile linear to oblong leaves 1. 5-3. 5 cm long by 0. 3-0. 5 cm wide, rounded at the apex and attenuate at the base. Both surfaces of the leaves are densely short tomentose, bestowing a silver-grey appearance. The inflorescences are 4-12 cm long, with 3-7 pairs of heads forming verticels, subtended by leafy bracts. The verticels are 0. 5-1. 13 cm in diameter, each comprising 15-30 pale yellow flowers, the corollas 4-5 mm long. Capsules are up to 2. 5 mm long, with numerous globose seeds up to 0. 4 mm in diam. B. utahensis is very rare in cultivation; it is a difficult plant to raise in temperate regions, demanding very free draining soil and infrequent watering. Hardiness: USDA zone 8.

Elephant tree is a drought-adapted species in the Torchwood family, native to desert regions of the southwestern United States and northern Mexico. In the U.S., it is found in Southern California and Arizona, while in Mexico it grows in Baja California, Baja California Sur, Sonora, Sinaloa, and Zacatecas. The Anza-Borrego Desert in San Diego County marks the northern limit of its range in California. It is the only member of its family native to the U.S., though related species are more common in Mexico.

Although typically a small tree, the elephant tree can grow as a sprawling, shrub-like plant in harsher conditions, often reaching just three feet in height. It has light gray to white bark that peels off in thin, papery layers. Younger branches may appear reddish. The trunk is noticeably swollen, an adaptation that allows the tree to store water for long periods of drought. The leaves are small and light-colored, and the tree readily sheds them in response to dry conditions to conserve moisture.

Elephant tree produces rounded yellow buds that open into small, star-shaped flowers in white or cream hues. Its fruit is a yellow stone containing a single seed, which is dispersed by wildlife. The tree is well adapted to survive in extreme desert environments, thriving in rocky soils and withstanding prolonged dry spells.

The Cahuilla People of Southern California value the Elephant Tree for its red sap, which they used as a general remedy for various ailments. Its unique appearance, ecological role in desert habitats, and cultural significance make it an important plant in the arid landscapes it inhabits.

Fairy duster (Calliandra eriophylla) is a low, spreading shrub with dense clusters of pink  flowers, which appear between late winter and late spring. It looks like a pink mist when in full bloom. Seed pods follow. This plant makes a good accent in drought-tolerant plantings. It grows 1 to3 feet tall and 3 feet wide with a slow to moderate growth rate.

Although it is a desert plant, its water requirements are higher than most. It is typically found where there is some subsurface water year-round. This species should not be confused with Baja Fairy Duster (Calliandra californica), a Baja endemic with deep red flowers, which is more commonly available in the horticultural trade.

Fairy duster likes good drainage and full sun. It will prefer afternoon shade in hotter inland areas. It will keep its leaves and look better in summer with occasional deep watering, about 3 times per month. However it does not need summer water once established.  It prefers sandy or decomposed granite soil.

Calochortus bruneaunis is a species of flowering plant in the lily family which is known by the common name Bruneau mariposa lily. It is native to the western United States from California to Montana, where it generally grows in dry, brushy areas. This is a perennial herb producing a mostly unbranching stem up to 40 centimeters tall. The leaf at the base of the stem is narrow in shape, reaching 10 to 20 centimeters long and withering away at flowering. The flower cluster bears 1 to 4 erect bell-shaped flowers. The pointed sepals and larger, rounded petals are white to lilac-tinted in base color. The sepals are marked with a reddish or greenish spot or streak toward their bases and the petals have a greenish streak on the outer surface and a base of yellow, purple, and red coloration on the inner surface. The fruit is a narrow, angled capsule up to 7 centimeters long. It contains several flat, yellow seeds.

Calochortus kennedyi is a species of flowering plant in the lily family known by the common name desert mariposa lily. It is native to the deserts of the southwestern United States and northwestern Mexico. It is a perennial herb which produces a slender, unbranching, sometimes twisting stem up to 50 centimeters tall, but generally shorter. There is a basal leaf 10 to 20 centimeters long which is waxy in texture and withers at flowering. The flower cluster bears 1 to 6 erect bell-shaped flowers in a loose cluster. Each flower has three sepals and three petals which are usually spotted at the bases. The petals may be 5 centimeters long and are yellow, orange, or red in color. The fruit is an angled, striped capsule up to 6 centimeters in length.

Calochortus macrocarpus, also known as sagebrush mariposa lily, occurs in northwestern United States and a small part of southern British Columbia. The leaves are blue-green and grass-like. The flowers are large, bloom in June, are three-petaled, and are pink and purple. The bulbs are tapering, like a carrot. First peoples in southern British Columbia harvested the bulbs from April to June. They can be eaten raw or cooked.

Calycoseris parryi (yellow tack-stem) is a spring wildflower found in the Mojave Desert, the Sonoran Desert, and surrounding regions of the southwestern United States and northwestern Mexico. It is found in California, Nevada, Utah, Arizona, and Baja California. Calycoseris parryi grows up to 30 centimeters (12 inches) tall in sandy soils below 6,000 feet. The plant has yellow flowers with leaves up to 4. 5 inches (11. 25 cm) long, and is part of the Sunflower Family.

Calycoseris wrightii, commonly known as White tackstem, is an annual spring wildflower, one of two species in the genus Calycoseris; the other species is C. parryi, the Yellow tack-stem. They are part of the sunflower family. White tackstem is found in the southwestern United States and northwestern Mexico in California, Nevada, southwestern Utah (Washington County), New Mexico, Arizona, northern Baja California, Sonora, western Texas (El Paso County). United States Department of Agriculture .

Cistanthe monandra (formerly Calyptridium monandrum) is a species of flowering plant in the purslane family known by the common name Common Pussypaws. It is native to the southwestern United States and adjacent Baja California, where it grows in sandy areas such as deserts and coastal and mountain scrub habitats. This is a fleshy, flat annual herb producing short stems which extend along the ground or spread upright from a small taproot. Thick, spoon-shaped leaves occur in a basal rosette at the base of the stem, reaching up to about 5 centimeter in length. There are smaller leaves along the stems. Small flower clusters sprout from the stem bearing many flowers, each with fleshy, triangular sepals and three pink or red petals only a few millimeters long. The fruit is a translucent, oblong capsule up to six millimeters long containing several shiny, black seeds.

Cistanthe rosea (formerly Calyptridium roseum) is a species of flowering plant in the purslane family commonly known as rosy pussypaws. It is native to the western United States from California to Wyoming, where it grows in forest and scrub. It is an annual herb, often reddish or pink in color, producing stems just a few centimeters long. The leaves are located in a rosette at the base and along the stems, and are up to 4 or 5 centimeters long. The inflorescence is a tiny cluster of white-edged thin sepals and two white petals, each no more than a millimeter long.

Calystegia longipes is a species of morning glory known by the common name Paiute false bindweed. It is native to the southwestern United States from California to Utah, where it grows in many types of habitat. It is a woody perennial herb growing into a bushy form up to a meter tall, with many spreading and erect, twining branches. The small leaves are linear to narrowly lance-shaped and sometimes have small lobes divided from the sides. The inflorescence is a solitary flower on a long peduncle up to 20 centimeters in length. The morning glory flower at the end is a white to pale lavender or pinkish bloom 2 or 3 centimeters wide.

Camissonia contorta is a species of evening primrose known by the common name plains evening primrose. It is native to western North America from British Columbia to California to Idaho, where it grows in many habitat types. It is an annual herb producing a slender, bending to curling red or green stem which is sometimes hairy. It is up to 30 centimeters long and erect or spreading out. The blue-green leaves are linear to very narrowly oval in shape and up to 3. 5 centimeters long. The nodding inflorescence produces one or more small flowers. Each has bright yellow petals up to half a centimeter long, sometimes with small red dots near the bases. The fruit is a capsule about 3 centimeters long containing shiny seeds.

Camissonia pubens is a species of evening primrose known by the common name hairy suncup. It is native to the desert and steppe of western Nevada and eastern California. It is an annual herb covered in glandular hairs generally made up of one or more erect, slender stems up to a third of a meter tall. The leaves are up to about 4 centimeters long and are lance-shaped with wavy, toothed edges. The nodding inflorescence produces flowers with yellow petals each a few millimeters long and sometimes dotted with red near the bases. The fruit is a straight or coiling capsule up to 5 centimeters long.

Camissonia pallida is a species of evening primrose known by the common name pale yellow suncup. It is native to the desert and scrub habitat of the region where Arizona, California, and Nevada meet. It is a roughly hairy annual herb growing in a low patch on the ground, sometimes producing an erect stem from the basal rosette. The herbage is gray-green to reddish green. The leaves are lance-shaped and up to 3 centimeters long. The nodding flower cluster produces flowers with yellow petals 2 to 13 millimeters long, each with small red markings near the bases. The fruit is a straight to tightly coiled capsule.

Carex alma is a species of sedge known by the common name sturdy sedge. It is native to the southwestern United States and northern Mexico, where it grows in moist spots in a number of habitat types. This sedge forms a thick clump of thin stems up to 90 centimeters in length and long, thready leaves. The leaves have basal sheaths with conspicuous red coloration, often spotting. The inflorescence is a dense to open cluster of many spikelets occurring both at the ends of stems and at nodes. Each cluster is up to 15 centimeters long and 1 to 2 wide. The plant is sometimes dioecious, with an individual sedge bearing either male or female flowers. The female, pistillate flowers have white or white-edged bracts. The male, staminate flowers have visible anthers 2 millimeters long or longer. The fruit is coated in a sac called a perigynium which is gold to dark brown in color and has a characteristic bit of spongy tissue at the base.

Carex douglasii is a species of sedge known by the common name Douglas' sedge. It is native to much of western North America, including the western Canadian provinces, the western United States, and Baja California. It grows in dry, wet, and seasonally moist habitat, from prairie and grassland to marshes. It is tolerant of sandy and alkaline substrates. This sedge produces triangular stems up to about 40 centimeters high from thin rhizomes. The leaves are thick but narrow and sometimes rolled. The plant is dioecious, with male and female flowers occurring on different individuals. The pistillate flower cluster is distinctive, with female flowers bearing long, protruding, persistent stigmas that tangle together into a wide mass.

Carex geyeri is a species of sedge known by the common names Geyer's sedge and elk sedge. It is native to western North America from British Columbia to California to Colorado, where it grows in dry areas in mountain meadows, grasslands, and open forest. This sedge produces scattered tufts of stems connected by a network of long rhizomes. The stems are triangular in cross-section and approach half a meter in maximum height. The flower cluster is composed of a cluster of staminate flowers and a cluster of pistillate flowers separated by a node.

Carex nebrascensis is a species of sedge known by the common name Nebraska sedge. It is native to the western and central United States and into central Canada, where it grows in wetlands. It tolerates alkaline soils and submersion for long periods of time. This sedge produces upright, angled, spongy stems up to about 90 centimeters tall. The waxy, bluish leaves form tufts around the base of each stem. The root system is a very dense network of rhizomes. The flower cluster includes a few narrow staminate spikes above some wider pistillate spikes on short peduncles. The fruit is covered in a tough, slightly inflated sac called a perigynium which sometimes has a pattern of red spotting. Uses for this sedge include forage for livestock and wild animals, wetland restoration, control of erosion and soil compaction, and natural wetland wastewater treatment.

Clustered field sedge (Carex praegracilis) is a tough, adaptable species in the sedge family (Cyperaceae), native to much of North America, except for the southeastern region. It thrives in wet and seasonally wet environments, including meadows, riverbanks, and wetlands, and can even grow in clay hardpan soils.

This sedge spreads readily by underground rhizomes, making it useful for erosion control on slopes. It also serves as an excellent lawn alternative, requiring significantly less water than traditional turfgrass. It can be mowed, tolerates moderate foot traffic, and works well in poorly draining areas or between pavers.

Tolerates almost any soil type. Tolertates any sun exposure in coast sites, but requires part shade or shade in inland sites. Selected for the garden.

Carex scoparia is a species of sedge known by the common names broom sedge and pointed broom sedge. It should not be confused with the unrelated grass species known as broom sedge, Andropogon virginicus. It is native to much of North America, including the southern half of Canada and most of the continental United States. It is known as an introduced species in New Zealand and parts of Europe. It can be found in many types of wetland habitat, and in generally wet places from meadows to irrigation ditches. Also, adaptable to vary soils and hidrologies. This sedge produces dense clumps of stems 20 centimeters to one meter tall with narrow grasslike leaves up to about 30 centimeters long. The flower cluster is a cluster or open array of several bullet-shaped spikes of flowers. The spikes are light green and age to tan or brown. The fruit is covered in a sac called a perigynium which is light in color.

The saguaro (Carnegiea gigantea), is a large, tree-sized cactus species in the monotypic genus Carnegiea. It is native to the Sonoran Desert in the U.S. state of Arizona, the Mexican state of Sonora, a small part of Baja California in the San Felipe Desert and an extremely small area of California, U.S. The saguaro blossom is the state flower of Arizona. The common name saguaro came into the English language through the Spanish language, originating in the language of the Tohono O'odham native American nation.

Castela emoryi, with the common names Crucifixion thorn and Emory's crucifixion-thorn, is a shrub species in the genus Castela of the order Sapindales. The plant is native to the Mojave Desert and Sonoran Deserts of North America. It is found in southern California, Arizona, and Sonora state (México). Castela emoryi is often less than 1 metre (3. 3 ft), and occasionally to grows 4 metres (13 ft) or more. It is ranked on the California Native Plant Society Inventory of Rare and Endangered Plants, as an endangered species within California, and more common elsewhere. It is threatened by solar energy development and military activities within its California range. Uses. The Yavapai people traditionally used this as a medicinal plant, making a dermatological aid from its bud's sap. Insecticide and fungicide. Castela emoryi is a plant toxin insecticide. It contains quassinoids such as glaucarubolone glucoside which has antifeedant properties against termites such as Reticulitermes flavipes, or potential fungicidal activity for the control of grape downy mildew. It also contains glaucarubol, a compound characteristic of the family, ellagic acid, betulin and (-)-syringaresinol.

Castilleja angustifolia is a species of wildflower known by the common names northwestern paintbrush and desert Indian paintbrush. It is an herbaceous perennial native to the desert scrub and woodlands of western North America. This Indian paintbrush is under half a meter in height and has bristly gray-green to purple-red herbage. It stands in a clump of erect stems, each topped with an flower cluster of somewhat tubular flowers in bright red to orange-red, sometimes tinted with purple, and usually fuzzy with a thin coat of white hairs. The centimeter-long capsule fruits contain honeycomb-patterned seeds. This plant can be red orange or yellow in color.

Purple owl's clover (Castilleja exserta) is an annual in the same species as the Indian paintbrushes. It was formerly included in the genus Orthocarpus, and some sources may still refer to it by that name. Although this species is variable in appearance and easily hybridizes with other Castilleja, it generally bears shaggy pink-purple or lavender flower clusters that resemble clover (though they are not related). The thin, erect leaves are usually tipped with the same color, giving the flower cluster the appearance of a paintbrush. It produces pods containing seeds.

The plant's showy appearance when in flower makes it a great fit for informal meadows and related landscapes. Like other related plants in the family, purple owl's clover derives some of its nutrients directly from the roots of other plants. Therefore, it is almost always planted, or grown from seed, with a perennial species from its natural plant community to serve as the host plant, such as a native grass. It takes full sun, prefers fast-draining soil but is tolerant of sand and clay. It does not need summer water.

The flowers attract bees and butterflies. It is a crucial host plant for the Bay Checkerspot butterfly, a threatened species in California, and hosts a likely total of 12 species of butterfly and moth.

Castilleja lacera is a species of Indian paintbrush known by the common name cutleaf Indian paintbrush. It is native to California and southern Oregon, where it grows in grassy mountain and foothill habitat. This is an annual herb coated in glandular hairs and growing up to about 40 centimeters tall. It has linear and lance-shaped leaves up to 5 centimeters long. The inflorescence is made up of hairy green bracts and bright yellow pouched flowers.

Castilleja linariifolia is a perennial plant, native to the United States and is the state flower of Wyoming. It has a number of common names including Wyoming Indian paintbrush, Narrow-leaved Indian paintbrush, desert paintbrush, Wyoming desert paintbrush, Wyoming paintbrush, linaria-leaved Indian Paintbrush, and Indian paint brush. It grows up to 1 meter in height and has linear leaves which are between 20 and 80 millimeter in length and have up to 3 lobes. The flowers, which consist of a red to yellow calyx and yellow-green floral tube, appear in panicles or spikes between June and September in its native range.

Lesser Paintbrush (Castilleja minor ssp. minor) is a native annual herb that grows in northern, southern and central California. It tends to grow in wet places, at elevations from 3900-7200 feet.

Castilleja pilosa is a species of Indian paintbrush known by the common name parrothead Indian paintbrush. It is native to the western United States from California to Wyoming, where it grows in mountain and plateau habitat across the Great Basin and surrounding regions. It is known from sagebrush scrub to high mountains in alpine climates. This wildflower is a perennial herb growing upright or along the ground with hairy stems up to about 35 centimeters long. It is quite variable in appearance. The inflorescence is made up of layers of greenish, purplish, or pink bracts sometimes edged in white. Between the bracts bloom the pouched yellow-green flowers with protruding stigmas. This wildflower is a perennial herb growing upright or along the ground with hairy stems up to about 35 centimeters long. It is quite variable in appearance. The inflorescence is made up of layers of greenish, purplish, or pink bracts sometimes edged in white. Between the bracts bloom the pouched yellow-green flowers with protruding stigmas. Varieties: There are several varieties of this species:C. p. var. longispica (longspike Indian paintbrush) - limited to Idaho, Montana, and WyomingC. p. var. pilosa - limited to California, Oregon, and NevadaC. p. var. steenensis (Steens Indian paintbrush) - endemic to Oregon

Castilleja tenuis is a species of Indian paintbrush, known by the common name hairy Indian paintbrush. It is native to the Northwestern United States, California, Nevada, and British Columbia. It grows from 1,000-2,800 metres (3,300-9,200 ft) in a number of habitat types including meadows, especially in mountainous areas including the Sierra Nevada and Cascade Range. Castilleja tenuis is an annual herb growing up to about 45 centimeters tall, green to purplish in color and coated in hairs. The inflorescence is made up of many narrow bracts between which emerge the white to bright yellow pouched flowers.

Caulanthus amplexicaulis is a species of flowering plant in the mustard family known by the common name claspingleaf wild cabbage. It is endemic to California, where it grows on open slopes in the Transverse Ranges and Outer South California Coast Ranges. Caulanthus amplexicaulis is annual herb produces a slender erect stem with flat, oval leaves clasping it toward the base. The bulbous purple flower forms a rounded pouch which opens at the top, the narrow petal tips reflexed back. The outer petal tips are deep purple, the inner much lighter to nearly white. The fruit is a very long silique which may exceed 10 centimeters in length. Varieties: There are two varieties of this species. Caulanthus amplexicaulis var. barbarae - Santa Barbara jewelflower; endemic to the serpentine soils of the San Rafael Mountains in central Santa Barbara County. The sepals forming the rounded pouch of the flower are white to cream in color as opposed to the bright purple of the more common variety. Caulanthus amplexicaulis var. amplexicaulis - endemic to the Transverse Ranges.

Caulanthus cooperi is a species of flowering plant in the mustard family known by the common name Cooper's wild cabbage. It is native to the southwestern United States and Baja California, where it is a common plant in a number of open, sandy habitats. This annual herb produces a slender, somewhat twisted stem with widely lance-shaped to oblong leaves clasping it. The flower has a rounded or urn-shaped coat of pinkish or pale greenish sepals enclosing light yellow or pale purple petals. The fruit is a straight or curving silique several centimeters long.

Caulanthus hallii is a species of flowering plant in the mustard family known by the common name Hall's wild cabbage. It is native to southern California and northern Baja California. It is native to southern California and northern Baja California. It grows in the Colorado Desert (western Sonoran Desert), Mojave Desert sky islands, and the dry eastern Peninsular Ranges slopes. Caulanthus hallii is an annual herb producing a hollow stem fringed at the base with long, deeply cut leaves which are hairless or sometimes bristly. The greenish yellow flower has a coat of hairy sepals over narrow, pale petals. The fruit is a silique up to about 11 centimeters long.

Desert Candle (Caulanthus inflatus) is a spectacular drought adapted annual flowering plant. Its most striking feature is its thick swollen yellow stems, which rise from a base of green leaves and look like candles. They can reach 3 feet in height. Small flowers appear on the stem in spring or fall and are reddish-purple.

This is a desert plant that does best in full sun and well-draining soil. It germinates readily from seed and works well in containers.Desert Candle is a great butterfly, moth, and native fly host.

Caulanthus major is a species of flowering plant in the mustard family known by the common name slender wild cabbage. It is native to the Great Basin and surrounding regions of the United States, where it grows on dry mountain slopes and similar habitat. It is a perennial herb growing an erect, hollow stem from a woody caudex. It is most similar to its relative, Caulanthus crassicaulis. Leaves appear in a basal rosette about the stem and along the body of the stem, and are smooth, toothed, or deeply cut along the edges. The largest leaves are lowest on the stem and may reach 9 centimeters long. The flower is enclosed in thick, sometimes hairy sepals which are very dark in color when new, usually a deep purple. The petals emerging from the tip are narrow and dark-veined. The fruit is a thin silique up to 13 centimeters long.

Caulanthus pilosus is a species of flowering plant in the mustard family known by the common names hairy wild cabbage and chocolate drops. It is native to open, dry habitat in the Great Basin of Nevada, the Eastern slope of the Sierra Nevada to 9,000 ft (2,700 m) and surrounding regions of the United States northward to the SE corner of Oregon. It is an annual or occasionally perennial herb coated in thin hairs, especially toward the base. Caulanthus pilosus may produce many stems per plant. The leaves are oblong in shape and deeply cut into lobes, hairy, and up to 25 centimeters long. Leaves toward the top of the stem are reduced in size, sometimes linear and smooth-edged, lacking lobes. The flower is covered in thick sepals which are greenish purple to deep purple or chocolate brown, splitting to reveal the wavy-edged, light-colored petals inside. The top cluster of flowers on each stem are sterile. The fruit is a long, narrow, upward-curving silique which may approach 18 centimeters long but is only 1-1. 5mm wide. Caulanthus pilosus may produce many stems per plant. The leaves are oblong in shape and deeply cut into lobes, hairy, and up to 25 centimeters long. Leaves toward the top of the stem are reduced in size, sometimes linear and smooth-edged, lacking lobes. The flower is covered in thick sepals which are greenish purple to deep purple or chocolate brown, splitting to reveal the wavy-edged, light-colored petals inside. The top cluster of flowers on each stem are sterile. The fruit is a long, narrow, upward-curving silique which may approach 18 centimeters long but is only 1-1. 5mm wide.

Known by the common names Mountain Buckbrush or Desert Ceanothus, it is native to the southwestern United States and northern Mexico where it grows in desert scrub, sagebrush, chaparral, and other dry habitat. This shrub grows erect to nearly 2 meters in maximum height. Its woody parts are gray in color and somewhat woolly. The evergreen leaves are oppositely arranged and variable in shape. They may be toothed or smooth along the edges. The flower cluster is a small cluster of many white flowers. The fruit is a horned capsule a few millimeters wide which bursts explosively to expel the three seeds. The seeds require thermal scarification from wildfire before they can germinate. This shrub is eagerly browsed by livestock and wild ungulates such as Mule deer and Desert Bighorn Sheep. Also known to attract a variety of bird species.

Celtis reticulata, or Netleaf Hackberry, is a medium-sized tree native to North America. The tree was first described in the mid nineteenth century by observations in the lower elevations of the Rocky Mountains as well as observations in lower montane areas of Oregon. C. reticulata was one of the species analyzed in a pollen core samplng study in northern Arizona, in which the early to late Holocene flora association was reconstructed; this study in the Waterman Mountains demonstrated that C. reticulata was found to be present after the Wisconsinan glaciation, but is not a current taxon of this Pinyon-juniper woodland area. The leaves are eaten by a number of insects, particularly certain moth caterpillars.

Centrostegia is a monotypic genus of plants in the family Polygonaceae with a single species in the southwestern United States and northwestern Mexico. Centrostegia thurberi is known by the common names Thurber's spineflower and red triangles. It is a petite herb with a distinct red coloration.

Curl Leaf Mountain Mahogany (Cercocarpus ledifolius) is a large, densely-branching shrub or tree. Its leathery, sticky, dark-green leaves are up to 1 1/2 inches long and lance-shaped.The small cream flowers appear in spring in clusters of up to three. It produces a small, dry fruit.

It is very drought-adapted and hardy, which makes it great for the high desert and for slopes. It is also a good choice for a screen or background shrub. It takes full to part sun and well-draining rocky soil.

This plant is distributed across western North America, where it grows on low mountains and slopes. It has a great many medicinal uses for various Indigenous Peoples, such as the Paiute and the Shoshone.

This species is known to attain ages at least as great as 1,350 years (although the tree that yielded this age was cut down; Schultz et al. 1990). This makes it arguably the oldest known flowering plant.

Chaenactis carphoclinia is a species of flowering plant in the daisy family known by the common name pebble pincushion. It is native to the southwestern United States and northwestern Mexico, where it grows in rocky and gravelly habitat, such as the California deserts. The species is found in southern California, Nevada, Utah, Arizona, southwestern New Mexico, Baja California, Sonora. Chaenactis carphoclinia is an annual herb growing an erect, branching stem up to about 60 centimeters (2 feet) in maximum height. The longest leaves are about 10 centimeters (4 inches) long and are usually divided into a few lobes. The inflorescence bears a few flower heads, each up to a centimeter wide. The head is lined with flat, sharp-pointed phyllaries which are reddish. The head contains several white or pink-tinted flowers with long, protruding anthers. The fruit is an achene a few millimeters in length tipped with a scaly pappus. Chaenactis carphoclinia is an annual herb growing an erect, branching stem up to about 60 centimeters (2 feet) in maximum height. The longest leaves are about 10 centimeters (4 inches) long and are usually divided into a few lobes. The inflorescence bears a few flower heads, each up to a centimeter wide. The head is lined with flat, sharp-pointed phyllaries which are reddish. The head contains several white or pink-tinted flowers with long, protruding anthers. The fruit is an achene a few millimeters in length tipped with a scaly pappus. VarietiesThere are two varieties of Chaenactis carphoclinia:C. c. var. carphoclinia is a smaller variety found throughout the species rangeC. c. var. piersonii is a larger variety known only from the Santa Rosa Mountains in southern California

Chaenactis douglasii is a species of flowering plant in the daisy family known by the common name Douglas' dustymaiden. It is native to western North America from British Columbia to Saskatchewan to California to New Mexico, where it grows in a wide variety of habitats, including harsh environments such as rock fields in alpine climates and disturbed areas such as roadsides. This is a variable herb, generally a perennial. It grows erect to a maximum height near 50 or 60 centimeters, with one to many stems coated in cobwebby hairs. The woolly or hairy leaves may be up to 15 centimeters long and are divided intricately into many lobes with curled or twisted tips. The flower cluster produces one or more flower heads, each up to about 2 centimeters long. The flower head is lined with flat, hairy, blunt-pointed phyllaries and contains several white or pinkish tubular flowers with protruding anthers. The fruit is an achene about a centimeter long including its pappus of scales.

Chaenactis fremontii, with the common names Fremont's pincushion and Desert pincushion, is a species of annual wildflower in the daisy family. Both the latter common name, and the specific epithet are chosen in honor of John C. Frémont. Chaenactis fremontii is native to the Southwestern United States and northern Baja California. It grows in sandy and gravelly soils in the deserts and low mountains, such as the Mojave Desert in California and the Sonoran Desert habitats. It is found in California, Baja California, Arizona, Nevada, and southern Utah. Chaenactis fremontii grows in patches of long stems which are green when new and grow reddish with age. They may branch to extend many tall, almost naked stems. The sparse leaves are somewhat fleshy and long and pointed. Atop each erect stem is an inflorescence bearing usually one but sometimes more flower heads, each with plentiful densely packed disc florets. There may be very large ray florets around the edge of the discoid head. The flowers are white or very light pink. Chaenactis fremontii is native to the Southwestern United States and northern Baja California. It grows in sandy and gravelly soils in the deserts and low mountains, such as the Mojave Desert in California and the Sonoran Desert habitats. It is found in California, Baja California, Arizona, Nevada, and southern Utah.

Chaenactis macrantha is a species of flowering plant in the daisy family known by the common names bighead dustymaiden and Mojave pincushion. It is native to the Great Basin and the southwestern deserts of the United States, in California, Arizona, Utah, Nevada, southwestern Idaho, and southeastern Oregon. It grows in dry, open habitat with gravelly, sandy soils, often calcareous or alkaline in nature. Chaenactis macrantha is an annual herb growing one or more branching stems to 30 - 35 centimeters (12-14 inches) in maximum height. The leaves are a few centimeters long and divided into many lobes. The inflorescence bears one or more flower heads on long peduncles. The flower head is lined with woolly phyllaries which have recurved tips. The head contains many white or pink-tinted flowers which open at night. The fruit is an achene about a centimeter long including the pappus.