CNPS Inventory Plant Detail

Pentachaeta aurea ssp. allenii

Common Name:	Allen's pentachaeta
Family:	Asteraceae
Synonyms:
Element Code:	PDAST6X021
Full Name:	Pentachaeta aurea Nutt. ssp. allenii Keil
USDA PLANTS Symbol:

Biology
Lifeform: annual herb Blooming Period: March - June Habitat: • Coastal scrub (openings) • Valley and foothill grassland

Rarity Status
CA Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G4T2 T2: Imperiled. G4: (species) Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 8
Element Occurrence Ranks:

A B C D X U

0 0 0 0 1 7

Population Status:

Historic >20 yrs	Recent <=20 yrs
3	5

Presence:

Present Extant	Possibly Extirpated	Extirpated
7	1	0

Notes

Known from fewer than 20 occurrences in Orange County. Threatened by development, habitat alteration, and vehicles. Possibly threatened by non-native plants. Not in The Jepson Manual (1993). See Madrono 54(4):343-344 (2007) for original description.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 2008-05-08
Last Update: 2011-05-20

Location

Elevation: 75 - 520 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Orange (ORA)

Quads: name (DWR code) USGS code
Dana Point (052B) 33117D6, Santiago Peak (070A) 33117F5, El Toro (070B)(?) 33117F6, Laguna Beach (071D) 33117E7, Black Star Canyon (087C) 33117G6

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

3303

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 .

-117.625,33.625