Taxon Details
Catabrosa aquatica
water whorlgrass
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Taxon Summary:
Catabrosa aquatica, commonly known as water whorlgrass, is a perennial stoloniferous herb in the Poaceae that is found in California and elsewhere. It occurs within Meadows and seeps, growing at elevations from to meters. Catabrosa aquatica is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.|
Scientific Name: Catabrosa aquatica (L.) P. Beauv. |
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Common Name: water whorlgrass |
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| Family: | Poaceae | |
| Element Code: | PMPOA19010 | |
| 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: | 2B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G5 |
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State Rank: |
S1 |
| Other Status: | |
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CRPR Changes: added to 2B.1 on 2018-12-12 |
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| Add Date: | 2018-12-12 |
| Date Edited: | 2023-08-01 |
| Lifeform: perennial stoloniferous herb | ||||||||||||||
Blooming Period: Jul-Sep
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Elevation:
- meters - feet |
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General Habitats:
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| Microhabitat Details: Sometimes stoloniferous or rhizomatous. | ||||||||||||||
Microhabitat:
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Notes: Discovered in CA by Marla Knight in 2007. Similar to Torreyochloa pallida var. pauciflora; differs in having leaf sheaths closed at least part of the way, vs. leaf sheaths open (with overlapping margins) to the base in T. pallida. See Species Plantarum 1: 64 (1753) for original description, and Essai d'une Nouvelle Agrostographie 97 (1812) for revised nomenclature. |
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Threats: Possibly threatened by grazing, trampling, vehicles, and recreational activities. |
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Taxonomy: |
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| Threat List Total: | 3 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 100 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 1 | 100% |
| Grazing | 1 | 100% |
| ORV activity | 1 | 100% |
| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 0 | 0 |
| 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) Alaska (AK), Arizona (AZ), California (CA), Colorado (CO), Idaho (ID), Iowa (IA), Montana (MT), Nebraska (NE), Nevada (NV), New Mexico (NM), North Dakota (ND), Oregon (OR), South America (SA), South Dakota (SD), Utah (UT), Washington (WA), Wisconsin (WI), Wyoming (WY) |
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California Counties and Islands: Name (Code) Siskiyou (SIS) |
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Quads: Name (Quad Code) Panther Rock (4112272) |
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Notes:
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Presumed Extant
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