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Cliff Spurge

Euphorbia misera

Euphorbia misera is a species in the Euphorbiaceae (Spurge) family known by the common name Cliff Spurge. It is native to southern California and Baja California, where it is known from the Sonoran Desert and the coastline, including the Channel Islands of California. It occurs in close proximity to the coast in Coastal Sage Scrub and Maritime Succulent Scrub vegetation, often on steep slopes. Although common in Baja, it is very rare in California. It was probably never common north of the border, and much of its former habitat has been lost to agriculture and urbanization.

This is a subshrub standing erect in protected areas, or prostrate when exposed to constant sea breeze. It reaches one half to one meter in height. The stems are limber and somewhat succulent. When broken, the stems produce a milky sap that is typical of Euphorbias. It has small, rounded, hairy leaves that are dropped readily in dry periods. The typical Euphorbia flower clusters are at the tips of the branches. The distinctive flower is hairy and has a central nectar disc with a bright red appendage with scalloped edges and a light yellow fringe. The style in the pistillate flower extends outward and is divided at the tip. The anthers are bright yellow. The fruit is a spherical capsule with lobes containing round, wrinkled gray seeds.

In the garden this plant can be a highly interesting though unusual specimen or accent plant. The flowers are not showy, but in garden conditions the plant can bloom nine months out of the year. It is especially effective with other succulents and decorative rock. It is best used in warm, relatively dry coastal gardens in the southern part of the state.

Tecate Cypress

Hesperocyparis forbesii

Tecate Cypress (Herpericyparis forbesii) is a species of cypress native to Southern California and Mexico. This is a relict species from a time when southern California's climate was cooler and wetter. It survives in a few, isolated locations in Los Angeles, Orange, Riverside and San Diego Counties, as well as northern Baja. It depends on intermittent fire for reproduction, but too frequent fires kill seedlings and threaten the survival of the species.

The foliage is bright green with reddish bark. Young trees are pyramidal in shape, becoming more rounded or contorted with age. It is very drought adapted; excessive supplemental water will make it floppy. In recent years, Tecate Cypress has become a fairly popular small tree for Southern California gardens. It makes a great specimen tree for larger landscapes, remaining tight and symmetrical.

The northernmost stand, comprising a very large area on the upper limits of Coal Canyon and Sierra Peak in Orange County, California, burned in a 2006 wildfire. Very few mature trees survived, but hundreds, if not thousands, of new plants are appearing as regeneration. Another devastating wildfire before seedlings are able to reach cone-producing age (which can be quite old for this species), could easily extirpate this stand.

Some refer to Tecate Cypress as a variety of Guadalupe Cypress (Cupressus guadalupensis), which occurs on Guadalupe Island, though that island is well over 250 miles from any Tecate Cypress stand. Aside from the ease of surmising that Tecate Cypress is genetically different from Guadalupe Cypress due to the two species being separated by ocean waters, molecular testing has shown the latter to be slightly more closely related to Cuyamaca Cypress (Hesperocyparis stephensonii).

Moreover, Guadalupe Cypress, when mature, makes a much taller and more massive tree than Tecate Cypress. Tecate Cypress has very green foliage, while Guadalupe Cypress has waxy pale, somewhat blueish tinted foliage. Finally, though cones of Tecate Cypress will not open without heat (unlike any other California native Cypress), those of Guadalupe Cypress will open without fire.

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