Status: record helianthella_castanea - Wed, Feb. 10, 2010 03:08 c

Helianthella castanea
common name	Diablo helianthella	CalPhotos image Charles Webber © 1998 California Academy of Sciences  Follow image link for photo data.
family	Asteraceae
life form	perennial herb
CNPS List	List 1B.2 CA-Endemic LIST 1B: Rare, threatened, or endangered in California and elsewhere.      0.2: Fairly endangered in California
state rank	S3.2     S3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
global rank	G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
	Where did the "RED" code go? Where did the "RED" code go? We've simplified our rating system. Read about it here. Under the old system, this plant was "2-2-3" (v6.05d, 9/05). Rarity 2: A limited number of occurrences in California, occasionally more if each occurrence is small. Endangerment 2: Fairly endangered in California Distribution 3: Endemic to California.
CA state listing	None
federal listing	None

where found	Topographic quads (18): Cedar Mountain (445D) 3712155, Dublin (446B) 3712168, La Costa Valley (446D) 3712157, Hayward (447A) 3712261, San Francisco South (448B) 3712264, Byron Hot Springs (463C) 3712176, Antioch South (464A) 3712187, Clayton (464B) 3712188, Diablo (464C) 3712178, Tassajara (464D) 3712177, Walnut Creek (465A) 3712281, Briones Valley (465B) 3712282, Oakland East (465C)* 3712272, Las Trampas Ridge (465D) 3712271, Richmond (466A) 3712283, San Rafael (467A)* 3712285, Benicia (482C) 3812212, Mare Island (483D) 3812213 quad data info Quad numbers in parentheses are from the CA Department of Water Resources. The 7-digit numbers are the USGS equivalent. Red marks signify uncertainty[?] or extirpation[*]. See quad list above. A complete key is on the Index by Topo Quad page. Marks are smaller than the quads they represent, and are generally positioned near the center of the quad. In some coastal quads, this will place the mark offshore. Quad boundaries do not coincide with county lines. To confirm county location, refer to the county list below. Counties, states, regions: Alameda (ALA), Contra Costa (CCA), Marin (MRN)*, San Francisco (SFO)*, San Mateo (SMT) counties map Quad Mark Identifier CNDDB Quick Viewer Web application for exploring the CNDDB elements reported at the quad level. (broadband recommended) A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats	•Broadleafed upland forest (BUFrs) •Chaparral (Chprl) •Cismontane woodland (CmWld) •Coastal scrub (CoScr) •Riparian woodland (RpWld) •Valley and foothill grassland (VFGrs)
blooming period	Mar-Jun
elevation range	60 - 1300 meters
notes	Threatened by urbanization, grazing, and fire suppression. Possibly threatened by roadside maintenance.
full name	Helianthella castanea Greene
	Additional information:
	standard acronym  HECA2 Element Code  PDAST4M020
CalFlora	this taxon    related taxa
Jepson Online	Jepson Manual and other resources
Google search	CNPS website    entire web

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Suggested citation: California Native Plant Society (CNPS). 2010. Inventory of Rare and Endangered Plants (online edition, v7-10a). California Native Plant Society. Sacramento, CA. Accessed on Wed, Feb. 10, 2010 from http://www.cnps.org/inventory