Species Details

Thysanocarpus rigidus

rigid fringepod

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Scientific Name:
Thysanocarpus rigidus (Munz) P.J. Alexander & Windham
Common Name:
rigid fringepod
Family: Brassicaceae
Element Code: PDBRA2Q070
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
S2
Other Status: SB_CalBG/RSABG; USFS_S
CRPR Changes:
added to 1B.2 on 2011-03-17
Add Date: 2011-03-17
Date Edited: 2023-04-04
Lifeform: annual herb
Blooming Period: Feb-May
JFMAMJJASOND
Elevation:
600 - 2200 meters
1970 - 7220 feet
General Habitats:
  • Pinyon and juniper woodland
Microhabitat Details:
Microhabitat:
  • Dry
  • Rocky
  • Slopes
Notes:
Known from fewer than 10 occurrences in CA and from one occurrence in BA. Possibly threated by development and non-native plants. See T. laciniatus var. rigidus in TJM 2. See Bulletin of the Southern California Academy of Sciences 31: 62 (1932) for original description and Systematic Botany 35(3): 559-577 (2010) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 2 13 %
THREAT LIST:
Development 1 6%
Recreational use (non-ORV) 1 6%
Vandalism/dumping/litter 1 6%
Total Occurrences: 15
Element Occurrence Ranks:
A B C D X U
0 0 0 0 1 14
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 11
Presence:
Presumed Extant 14
Possibly Extirpated 1
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Butterfly Peak (3311655), Idyllwild (3311666), Ivanpah (3511533), Monument Peak (3211684), Mount Laguna (3211674), Mt. Baldy (3411726), Ontario (3411716), Pacifico Mountain (3411841), Palm View Peak (3311665), Toro Peak (3311654)
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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