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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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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1G2 |
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State Rank: |
S1 |
| Other Status: | |
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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: | 2024-03-06 |
| 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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| No threats | ||
| 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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| CNPS Status Review: | Proposed Addition to California Rare Plant Rank 1B.1, G1G2 / S1 (2023) |
| Taxonomic Treatment: | Canadian Field-Naturalist 135: 293–304 (2021) |
| Other: | For first CA record see Madroño 67: 63–64 (2020) |