Taxon Details
Riella americana
American riella
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Taxon Summary:
Riella americana, commonly known as American riella, is a liverwort (aquatic) in the Riellaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, and Pinyon and juniper woodland, growing at elevations from 1615 to 1615 meters. Riella americana is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.|
Scientific Name: Riella americana M. Howe & Underw. |
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Common Name: American riella |
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| Family: | Riellaceae | |
| Element Code: | NBHEP31020 | |
| USDA Plants Symbol: | RIAM6 | |
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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: | 2B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G2G3 |
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State Rank: |
S1 |
| Other Status: | |
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CRPR Changes: added to 2.2 on 2011-03-23 |
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| Add Date: | 2011-03-23 |
| Date Edited: | 2024-03-06 |
| Lifeform: liverwort (aquatic) | ||||||||||||||
Blooming Period: Aug-Sep
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Elevation:
1615 - 1615 meters 5300 - 5300 feet |
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General Habitats:
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| Microhabitat Details: Arid and semiarid regions as a submerged aquatic in mud flats. In temporary pools and streams. Also in reservoirs and stock ponds. | ||||||||||||||
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Microhabitat:
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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: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 1 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA), New Mexico (NM), South Dakota (SD), Texas (TX) |
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California Counties and Islands: Name (Code) Modoc (MOD) |
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Quads: Name (Quad Code) Big Sage Reservoir (4112056), Mahogany Ridge (4112055) |
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Notes:
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Presumed Extant
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