CNPS Inventory Plant Detail

Chorizanthe howellii

Biology
Lifeform: annual herb Blooming Period: May - July Habitat: sandy, often disturbed areas. • Coastal dunes • Coastal prairie • Coastal scrub

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: FE Endangered (06/22/92) State Listing Status: CT Threatened (01/87) State Rank: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
5	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	0	0

Notes

Known only from north of Ft. Bragg. Threatened by development, foot traffic, recreational activities, vehicles, and non-native plants. Potentially threatened by trail construction. Closely related to C. pungens. See Annals of the Missouri Botanical Garden 21:44 (1934) for original description, and Phytologia 66(2):131-132 (1989) for taxonomic treatment.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1980-01-01
Last Update: 2012-05-14

Location

Elevation: 0 - 35 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Mendocino (MEN)

Quads: name (DWR code) USGS code
Fort Bragg (569A) 39123D7, Inglenook (585D) 39123E7

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

470

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-123.75,39.375