Taxon Report
Nama demissa A. Gray var. covillei BrandCoville's purple mat |
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Classification
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Scientific Name: |
Nama demissa A. Gray var. covillei Brand |
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Common Name: |
Coville's purple mat |
| Family: | Namaceae |
| Element Code: | PDHYD0A031 |
| 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: | -85-1800 (-280-5905) |
| General Habitats: | Mojavean desert scrub |
| Microhabitat: | Dry, Flats, Roadsides (often), Sandy, Slopes |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G5T3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 25 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 25 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Avawatz Pass (3511654), Beatty Junction (3611658), Chloride City (3611668), Dantes View (3611626), Devils Golf Course (3611637), Dumont Dunes (3511662), Echo Canyon (3611646), Epaulet Peak (3511685), Furnace Creek (3611647), Gold Valley (3611616), Grotto Canyon (3611751), Ivanpah (3511533), Kingston Peak (3511568), Resting Spring (3511682), Ryan (3611636), Saddle Peak Hills (3511663), Scottys Castle (3711713), Shoshone (3511683), Sixmile Spring (3611621), Stewart Valley (3611622), Stovepipe Wells NE (3611761), Thimble Peak (3611771), Twelvemile Spring (3611612), Ubehebe Crater (3711714) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Notes
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Potentially threated by road construction and maintenance. Possibly threatened by erosion, which might be exacerbated by climate shifts. Often misidentified as var. demissa. Leaf attachment and shape are primary differentiating characters between varieties, but these traits can be variable and substrate might be a better indicator of differentiation; needs further study. See Das Pflanzenreich IV. 251(59): 159 (1913) for original description, and American Journal of Botany 20(8): 518-534 (1933) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2018-05-30 |
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].