CNPS Inventory Plant Detail

Trichocoronis wrightii var. wrightii

Common Name:	Wright's trichocoronis
Family:	Asteraceae
Synonyms:
Element Code:	PDAST9F031
Full Name:	Trichocoronis wrightii (T. & G.) Gray var. wrightii
USDA PLANTS Symbol:	TRWR2

Biology
Lifeform: annual herb Blooming Period: May - September Habitat: alkaline. • Meadows and seeps • Marshes and swamps • Riparian forest • Vernal pools

Rarity Status
CA Rare Plant Rank: 2.1 Rare, threatened, or endangered in California, but more common elsewhere .1: Seriously endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G4T3 T3: Vulnerable. G4: (species) Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 9
Element Occurrence Ranks:

A B C D X U

1 1 0 0 1 6

Population Status:

Historic >20 yrs	Recent <=20 yrs
8	1

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	1	0

Notes

Nearly extirpated in the Central Valley. Habitat lost to agriculture and urbanization. Confusion persists, but plant is probably native to CA. Rare in TX; perhaps more common in northern Mexico. Perhaps best treated as a full species distinct from TX plants.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1988-01-01
Last Update: 2012-08-17

Location

Elevation: 5 - 435 meters

California Endemic: no

States: California, Baja California, Texas

California Counties and Islands: name (code)
Colusa (COL) *, Merced (MER), Riverside (RIV), San Joaquin (SJQ) *, Sutter (SUT) *

Quads: name (DWR code) USGS code
Beaumont (084B) 33116H8, El Casco (085A) 33117H1, Perris (085C) 33117G2, Lakeview (085D) 33117G1, Turner Ranch (402B) 37120B6, Los Banos (403D)* 37120A7, Lathrop (462D)* 37121G3, Kirkville (530A)* 38121H7, Gilsizer Slough (544C)* 39121A6, Meridian (545B)* 39121B8, Grimes (545C)* 39121A8, Tisdale Weir (545D)* 39121A7, Arbuckle (546D)* 39122A1

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

1520

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 .

-120.625,37.125