CNPS Inventory Plant Detail

*The database used to provide updates to the Online Inventory is under construction. View updates and changes made since May 2019 here.

Hymenoxys odorata

Common Name:	bitter hymenoxys
Family:	Asteraceae
Synonyms:
Element Code:	PDAST530E0
Full Name:	Hymenoxys odorata DC.
USDA PLANTS Symbol:	HYOD

2012 James M. Andre

Biology
Lifeform: annual herb Blooming Period: Feb,Apr,May,Jun,Aug,Sep,Oct,Nov Habitat: sandy. • Riparian scrub • Sonoran desert scrub

Rarity Status
California Rare Plant Rank: 2B.1 Rare or Endangered in California, common elsewhere .1: Seriously endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G5 G5: Secure, considering populations outside California.

Occurrence Data from CDFW
California Natural Diversity Database

Total # of Known Element Occurrences: 6
Element Occurrence Ranks:

A B C D X U

0 0 0 0 0 6

Population Status:

Historic >20 yrs	Recent <=20 yrs
5	1

Presence:

Present Extant	Possibly Extirpated	Presumed Extirpated
6	0	0

Notes
Most occurrences historical; need field surveys. Threatened by agriculture and development. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2008-11-20 Last Update: 2013-06-12

Location

Elevation: 45 - 150 meters

California Endemic: no

Other States: Arizona, Baja California, Colorado, New Mexico, Texas

California Counties and Islands: name (code)
Imperial (IMP), Riverside (RIV), San Bernardino (SBD)

Quads: name (DWR code) USGS code
Palo Verde (040B) 3311446, Cibola (040C) 3311436, Blythe (058D) 3311455, Cross Roads (094B) 3411422, Gene Wash (120C) 3411432

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. This data should NOT be substituted for pre-project review or for on-site surveys.

Presumed Extant

Presumed Extirpated or Unknown

3350

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

Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website http://www.rareplants.cnps.org [accessed ].

-114.125,34.125