Taxon Report
Eriogonum intrafractum Cov. & Mort.jointed buckwheat |
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Taxon Summary
Eriogonum intrafractum, commonly known as jointed buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Mojavean desert scrub, growing at elevations from 610 to 1950 meters. Eriogonum intrafractum is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Eriogonum intrafractum Cov. & Mort. |
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Common Name: |
jointed buckwheat |
| Family: | Polygonaceae |
| Element Code: | PDPGN08360 |
| USDA Plants Symbol: | ERIN5 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Oct | May-Oct |
| Elevation: | 610-1950 (2000-6400) |
| General Habitats: | Mojavean desert scrub |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 14 |
| Element Occurrence Ranks: | |
| Excellent (A) | 2 |
| Good (B) | 2 |
| Fair (C) | 0 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 9 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY) | |
| Quads: Name (Quad Code) | |
| Echo Canyon (3611646), Fall Canyon (3611772), Grotto Canyon (3611751), Panamint Butte (3611743), Thimble Peak (3611771), Wahguyhe Peak (3611781), Wildrose Peak (3611731) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 4 | 29 % | |
| Grazing | 2 | 14% |
| Non-native animal impacts | 1 | 7% |
| Non-native plant impacts | 1 | 7% |
| Other | 1 | 7% |
| Over-collecting/poaching | 1 | 7% |
| Foot traffic/trampling | 1 | 7% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 November 2025].