Species Details
Isoetes minima
Columbia quillwort
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Species Description:
Isoetes minima, commonly known as Columbia quillwort, is a perennial cormiferous herb in the Isoetaceae that is found in California and elsewhere. It occurs within Meadows and seeps, growing at elevations from 2190 to 2190 meters. Isoetes minima is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Isoetes minima A. A. Eaton |
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Common Name: Columbia quillwort |
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| Family: | Isoetaceae | |
| Element Code: | PPISO01081 | |
| USDA Plants Symbol: | ISMI4 | |
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Synonyms/Other Names: |
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| Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1G2 |
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State Rank: |
S1 |
| Other Status: | BLM_S |
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CRPR Changes: added to 1B.1 on 2023-03-29 |
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| Add Date: | 2023-03-29 |
| Date Edited: | 2024-11-05 |
| Lifeform: perennial cormiferous herb | ||||||||||||||
Blooming Period: Jun
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Elevation:
2190 - 2190 meters 7185 - 7185 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Field work needed (population size and extent, site quality and threats, vegetation and associated species, search for more occurrences). |
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Threats: Possibly threatened by grazing and trampling. |
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Taxonomy: Previously confused with I. howellii; mature female spores (megaspores) distinctive in being densely tuberculate and with a row of spinules along the equatorial ridge. |
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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), Idaho (ID), Oregon (OR), Washington (WA) |
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California Counties and Islands: Name (Code) Modoc (MOD) |
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Quads: Name (Quad Code) Mt. Bidwell (4112082) |
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Notes:
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Presumed Extant
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