Taxon Details
Sidotheca emarginata
white-margined oxytheca
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Taxon Summary:
Sidotheca emarginata, commonly known as white-margined oxytheca, is a annual herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Lower montane coniferous forest, and Pinyon and juniper woodland, growing at elevations from 1200 to 2500 meters. Sidotheca emarginata is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Sidotheca emarginata (H.M. Hall) Reveal |
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Common Name: white-margined oxytheca |
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| Family: | Polygonaceae | |
| Element Code: | PDPGN0J030 | |
| 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: | 1B.3 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3 |
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State Rank: |
S3 |
| Other Status: | SB_CalBG/RSABG; SB_USDA; USFS_S |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: (Feb)Apr-Jul(Aug)
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Elevation:
1200 - 2500 meters 3935 - 8205 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Threatened by development, grazing, recreational activities, and trampling. See University of California Publications in Botany 1: 75 (1902) for original description, Harvard Papers in Botany 9(1): 211 (2004) for revised nomenclature, and Phytologia 66(4): 388 (1989) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 1 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 5 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 1 | 4% |
| Total Occurrences: | 21 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 0 | 20 |
| Occurrence Status: | |||||
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| Historical >20 Years | 9 | ||||
| Recent <=20 Years | 12 | ||||
| Presence: | |||||
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| Presumed Extant | 21 | ||||
| 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) Riverside (RIV) |
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Quads: Name (Quad Code) Anza (3311656), Butterfly Peak (3311655), Idyllwild (3311666), Palm View Peak (3311665), San Jacinto Peak (3311676), Toro Peak (3311654) |
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Notes:
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Presumed Extant
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