Camissonia's CA Native Plant Life List

I"ve been an amateur botanist since circa 1997 with a special interest in California native plants. A corollary passion of mine is birding and, like many fellow birders, I keep a Life List of all the bird species that I've observed in my lifetime. So I thought, why not also create a life list for plants I've seen in the field? In addition to California natives, I've also included a smaller list of plants that I've observed and photographed in their native habitats outside of the U.S.

Saturday, November 12, 2016

Ceanothus leucodermis (Whitebark California Lilac/Chaparral Whitethorn)

11/5/16 State Route 243 at 4,800' elevation, San Jacinto Mountains,
Riverside County, CA

11/5/16 State Route 243 at 4,800' elevation, San Jacinto Mountains,

Riverside County, CA

11/5/16 State Route 243 at 4,800' elevation, San Jacinto Mountains,

Riverside County, CA

3/24/17 Dripping Springs Trail, Agua Tibia Wilderness,
Cleveland National Forest, Riverside County, CA

4/4/17 Cajon Pass (I-15), San Bernardino National Forest,

San Bernardino County, CA

4/4/17 Cajon Pass (I-15), San Bernardino National Forest,

San Bernardino County, CA

LIFE LIST NOTES:

COMMON NAME: Whitebark California Lilac, Chaparral Whitethorn

SPECIES: Ceanothus leucodermis

FAMILY: Rhamnaceae (Buckthorn Family)

LIFE LIST DATE: 11/5/2016

LOCATION: State Route 243 at 4,800' elevation, San Jacinto Mountains, Riverside County, CA

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Treatment from The Jepson Manual (1993):

Plant erect, < 4 m, thorny

Stem: twigs round, gray-glaucous, puberulent, becoming glaucous

Leaves alternate, evergreen, < 4 cm; stipules deciduous; petiole 2–3 mm; blade ovate to elliptic-oblong, 3-ribbed from base, tip acute to obtuse, margin entire to minutely serrate, glandular or not, both surfaces gray-glaucous, glabrous to puberulent

Inflorescence generally raceme-like, < 11 cm; clusters stalked

Flower pale blue to white

Fruit < 6 mm, sticky, 3-lobed, depressed at top; valve crests 0

Ecology: Dry, rocky or sandy slopes

Elevation: < 1800 m.

Bioregional distribution: Sierra Nevada Foothills, San Francisco Bay Area, South Coast Ranges, Transverse Ranges, Peninsular Ranges

Distribution outside California: n Baja California

Variable in leaves, inflorescence

Horticultural information: DRN, DRY: 7, 14, 15, 16, 17, 18.

Camissonia's CA Native Plant Life List

Saturday, November 12, 2016

Ceanothus leucodermis (Whitebark California Lilac/Chaparral Whitethorn)

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