Species Details

Oxytheca watsonii

Watson's oxytheca

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Scientific Name:
Oxytheca watsonii T. & G.
Common Name:
Watson's oxytheca
Family: Polygonaceae
Element Code: PDPGN0J070
USDA Plants Symbol: OXWA
Synonyms/Other Names:
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G3?
State Rank:
S1
Other Status:
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 1980-01-01
Date Edited: 2022-06-08
Lifeform: annual herb
Blooming Period: May-Jul
JFMAMJJASOND
Elevation:
1200 - 2000 meters
3935 - 6560 feet
General Habitats:
  • Joshua tree "woodland"
  • Mojavean desert scrub
Microhabitat Details:
Microhabitat:
  • Sandy
Notes:
Known in CA from fewer than five occurrences. See MadroƱo 29(4):273-274 (1982) for first CA occurrences, and Phytologia 66(4):385-86 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 2 29 %
THREAT LIST:
Grazing 1 14%
ORV activity 1 14%
Recreational use (non-ORV) 1 14%
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 6
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 3
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Darwin (3611735), Emigrant Canyon (3611742), Emigrant Pass (3611732), Harris Hill (3611754), Lee Wash (3611745), Nelson Range (3611756), Santa Rosa Flat (3611746), Talc City Hills (3611736)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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