Taxon Details
Atriplex flavida
Carrizo Plain crownscale
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Taxon Summary:
Atriplex flavida, commonly known as Carrizo Plain crownscale, is a annual herb in the Chenopodiaceae that is found only in California. It occurs within Chenopod scrub, Valley and foothill grassland, and Vernal pools, growing at elevations from 585 to 605 meters. Atriplex flavida is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Atriplex flavida (S.C. Sand. & G.L. Chu) D.J. Keil & D.W. Taylor |
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Common Name: Carrizo Plain crownscale |
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| Family: | Chenopodiaceae | |
| Element Code: | PDCHE04360 | |
| 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: | BLM_S; SB_SBBG |
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CRPR Changes: added to 1B.3 on 2019-11-04 |
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| Add Date: | 2019-11-04 |
| Date Edited: | 2024-11-05 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Mar-Jul
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Elevation:
585 - 605 meters 1920 - 1985 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: See Genera and a New Evolutionary System of World Chenopodiaceae (2017) by Chu and Sanderson for original description, and Phytoneuron 65:1-7 (2018) for taxonomic treatment and revised nomenclature. |
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Threats: Threatened by agricultural development. Possibly threatened by vehicles, grazing, non-native plants, road construction, and foot traffic. |
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Taxonomy: Formerly included in A. coronata var. vallicola; differentiated from all A. coronata varieties in having an overall yellow-green color (vs. gray-green), 3(4) stamens (vs. (4)5 stamens), and longer fruiting bracteoles in addition to other characters. |
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| Threat List Total: | 8 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 21 | 57 % |
| THREAT LIST: | ||
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| Other | 8 | 21% |
| Non-native plant impacts | 7 | 18% |
| ORV activity | 5 | 13% |
| Grazing | 5 | 13% |
| Road/trail construction/maint. | 4 | 10% |
| Foot traffic/trampling | 2 | 5% |
| Agriculture | 1 | 2% |
| Development | 1 | 2% |
| Total Occurrences: | 37 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 5 | 11 | 5 | 1 | 0 | 15 |
| Occurrence Status: | |||||
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| Historical >20 Years | 11 | ||||
| Recent <=20 Years | 26 | ||||
| Presence: | |||||
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| Presumed Extant | 37 | ||||
| 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) San Luis Obispo (SLO) |
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Quads: Name (Quad Code) California Valley (3512031), Chimineas Ranch (3511928), La Panza NE (3512041), Las Yeguas Ranch (3511948), McKittrick Summit (3511937), Painted Rock (3511927), Panorama Hills (3511926), Simmler (3511938) |
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Notes:
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Presumed Extant
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