Taxon Details
Nama demissa var. covillei
Coville's purple mat
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Taxon Summary:
Nama demissa var. covillei, commonly known as Coville's purple mat, is a annual herb in the Namaceae that is found only in California. It occurs within Mojavean desert scrub, growing at elevations from -85 to 1800 meters. Nama demissa var. covillei is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Nama demissa A. Gray var. covillei Brand |
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Common Name: Coville's purple mat |
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| Family: | Namaceae | |
| Element Code: | PDHYD0A031 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.3 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G5T3 |
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State Rank: |
S3 |
| Other Status: | BLM_S |
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CRPR Changes: added to 1B.3 on 2018-05-30 |
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| Add Date: | 2018-05-30 |
| Date Edited: | 2021-06-03 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Feb-May
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Elevation:
-85 - 1800 meters -280 - 5905 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: 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: |
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| Threat List Total: | 0 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 0 | % |
| THREAT LIST: | ||
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| Total Occurrences: | 25 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 25 |
| Occurrence Status: | |||||
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| Historical >20 Years | 12 | ||||
| Recent <=20 Years | 13 | ||||
| Presence: | |||||
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| Presumed Extant | 25 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Inyo (INY), San Bernardino (SBD) |
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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) |
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Notes:
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Presumed Extant
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