Taxon Report
Thysanocarpus rigidus (Munz) P.J. Alexander & Windhamrigid fringepod |
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Classification
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Scientific Name: |
Thysanocarpus rigidus (Munz) P.J. Alexander & Windham |
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Common Name: |
rigid fringepod |
| Family: | Brassicaceae |
| Element Code: | PDBRA2Q070 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Feb-May | Feb-May |
| Elevation: | 600-2200 (1970-7220) |
| General Habitats: | Pinyon and juniper woodland |
| Microhabitat: | Dry, Rocky, Slopes |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 15 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 1 |
| Unknown (U) | 14 |
| California Endemic: False | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 3 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 13 % | |
| Development | 1 | 6% |
| Recreational use (non-ORV) | 1 | 6% |
| Vandalism/dumping/litter | 1 | 6% |
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. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2011-03-17 |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].