Taxon Report
Taraxacum ceratophorum (Ledeb.) DC.horned dandelion |
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Taxon Summary
Taraxacum ceratophorum, commonly known as horned dandelion, is a annual herb in the Asteraceae that is . It occurs within Alpine boulder and rock field, Meadows and seeps, and Valley and foothill grassland (mesic), growing at elevations from 2895 to 3610 meters. Taraxacum ceratophorum is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Taraxacum ceratophorum (Ledeb.) DC. |
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Common Name: |
horned dandelion |
| Family: | Asteraceae |
| Element Code: | PDAST930Y1 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Jun-Jul(Aug) | Jun-Jul(Aug) |
| Elevation: | 2895-3610 (9500-11845) |
| General Habitats: | Alpine boulder and rock field, Meadows and seeps, Valley and foothill grassland |
| Microhabitat: | Carbonate (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.1 |
| Global Rank: | G5 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 1 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 1 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Mono (MNO) | |
| Quads: Name (Quad Code) | |
| Mt. Barcroft (3711852) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Notes
| Known in CA from the vacinity of the White Mountains. Threatened by trampling, hydrological alteration, and competition. Possibly threatened by hybridization with T. officinale. Not in The Jepson Manual. See Madroño 5:247-248 (1940) for alternate nomenclature, and American Journal of Botany 91(5): 656-663 (2004) for information on native range and hybridization. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2004-07-27 |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 March 2025].