Taxon Details
Juncus digitatus
finger rush
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Image by Wendy Boes |
Taxon Summary:
Juncus digitatus, commonly known as finger rush, is a annual herb in the Juncaceae that is found only in California. It occurs within Cismontane woodland (openings), Lower montane coniferous forest (openings), and Vernal pools (xeric), growing at elevations from 660 to 1097 meters. Juncus digitatus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Juncus digitatus C. Witham & Zika |
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Common Name: finger rush |
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| Family: | Juncaceae | |
| Element Code: | PMJUN013E0 | |
| USDA Plants Symbol: | JUDI3 | |
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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.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | |
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CRPR Changes: added to 1B.1 on 2009-01-02 |
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| Add Date: | 2009-01-02 |
| Date Edited: | 2022-11-01 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: (Apr)May-Jun
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Elevation:
660 - 1097 meters 2165 - 3600 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Two occurrences in SHA Co.; one occurrence is threatened by ornamental rock mining and the other is threatened by water diversion. A third occurrence in NEV Co. is threatened by development and hydrological alterations. See J. Botanical Research Institute of Texas 2(2):775-781 (2008) for original description. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 3 | 100 % |
| THREAT LIST: | ||
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| Altered flood/tidal/hydrologic regime | 1 | 33% |
| Development | 1 | 33% |
| Disking | 1 | 33% |
| Mining | 1 | 33% |
| Surface water diversion | 1 | 33% |
| Total Occurrences: | 3 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 0 | 0 | 0 | 0 | 2 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 3 | ||||
| Presence: | |||||
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| Presumed Extant | 3 | ||||
| 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) Nevada (NEV), Shasta (SHA) |
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Quads: Name (Quad Code) Grass Valley (3912121), Hagaman Gulch (4012157), Shingletown (4012148) |
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Notes:
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Presumed Extant
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