CNPS Inventory Plant Detail

Plagiobothrys chorisianus var. chorisianus

Common Name:	Choris' popcorn-flower
Family:	Boraginaceae
Synonyms:
Element Code:	PDBOR0V061
Full Name:	Plagiobothrys chorisianus (Chamb.) Jtn. var. chorisianus
USDA PLANTS Symbol:	PLCHC

Biology
Lifeform: annual herb Blooming Period: March - June Habitat: mesic. • Chaparral • 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: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G3T2Q T2: Imperiled. G3: (species) Vulnerable. (There are taxonomic questions associated with this name)

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 12
Element Occurrence Ranks:

A B C D X U

1 1 0 0 1 9

Population Status:

Historic >20 yrs	Recent <=20 yrs
7	5

Presence:

Present Extant	Possibly Extirpated	Extirpated
11	0	1

Notes
Taxonomic work needed; intergrades with var. hickmanii, and differences may be environmentally induced. Threatened by development. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1984-01-01 Last Update: 2010-03-15

Location

Elevation: 15 - 160 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Alameda (ALA) (*?), Santa Cruz (SCR), San Francisco (SFO), San Mateo (SMT)

Quads: name (DWR code) USGS code
Watsonville West (387A) 36121H7, Felton (408D) 37122A1, Franklin Point (409A) 37122B3, Ano Nuevo (409D) 37122A3, Woodside (429A) 37122D3, Half Moon Bay (429B) 37122D4, San Gregorio (429C) 37122C4, San Francisco South (448B) 37122F4, Montara Mountain (448C) 37122E4, San Francisco North (466C)(*?) 37122G4, Oakland West (466D)* 37122G3

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

1382

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 .

-122.25,37.375