Asian Watermeal
Wolffia globosa
Calscape.org
Calscape.org
Tongueshape Bogmat
Wolffiella lingulata
Calscape.org
Saber Bogmat
Wolffiella oblonga
Calscape.org
Oregon Cliff Fern
Woodsia oregana
Calscape.org
Plummer's Woodsia
Woodsia plummerae
Calscape.org
Rocky Mountain Woodsia
Woodsia scopulina
Calscape.org
Giant Chain Fern
Woodwardia fimbriata
Calscape.org
Narrow Leaf Mule Ears
Wyethia angustifolia
Calscape.org
Bolander's Mule's Ears
Wyethia bolanderi
Calscape.org
Hall's Mule Ears
Wyethia elata
Calscape.org
Shining Mule Ears
Wyethia glabra
Calscape.org
Whitehead Wyethia
Wyethia helenioides
Calscape.org
Rayless Mule's Ears
Wyethia invenusta
Calscape.org
Humboldt County Wyethia
Wyethia longicaulis
Calscape.org
Mule Ears
Wyethia mollis
Calscape.org
Southern Mule's Ears
Wyethia ovata
Calscape.org
El Dorado County Mule Ears
Wyethia reticulata
Calscape.org
Annual Bristleweed
Xanthisma gracile
Calscape.org
Rush-like Bristleweed
Xanthisma junceum
Calscape.org
Xanthisma spinulosum
Calscape.org
Spiny Goldenweed
Xanthisma spinulosum var. gooddingii
Calscape.org
Cocklebur
Xanthium orientale
Calscape.org
Beargrass
Xerophyllum tenax
Calscape.org
Mission Manzanita
Xylococcus bicolor
Calscape.org
Mecca-aster
Xylorhiza cognata
Calscape.org
Orcutt's Woody Aster
Xylorhiza orcuttii
Calscape.org
Mojave Woodyaster
Xylorhiza tortifolia
Calscape.org
Mojave-aster
Xylorhiza tortifolia var. tortifolia
Calscape.org
California Hedge Parsley
Yabea microcarpa
Calscape.org
Mountain Garland White Farewell-to-Spring
Yorkia unguiculata 'Mountain Garland White'
Calscape.org
Banana Yucca
Yucca baccata
Calscape.org
Banana Yucca
Yucca baccata var. baccata
Calscape.org
Joshua Tree
Yucca brevifolia
Calscape.org
Mojave Yucca
Yucca schidigera
Calscape.org
Horned Pondweed
Zannichellia palustris
Calscape.org
Davy's Centaury
Zeltnera davyi
Calscape.org
Tall Centaury
Zeltnera exaltata
Calscape.org
Monterey Centaury
Zeltnera muehlenbergii
Calscape.org
Spring-loving Centaury
Zeltnera namophila
Calscape.org
Alkali Centaury
Zeltnera trichantha
Calscape.org
Canchalagua
Zeltnera venusta
Calscape.org
Lotebush
Ziziphus obtusifolia
Calscape.org
Graythorn
Ziziphus obtusifolia var. canescens
Calscape.org
Parry's Jujube
Ziziphus parryi
Calscape.org
Parry's Jujube
Ziziphus parryi var. parryi
Calscape.org
Common Eelgrass
Zostera marina
Calscape.org
Wide-leaved Eelgrass
Zostera pacifica