Taxon Report
Ranunculus hydrocharoides Grayfrog's-bit buttercup |
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Taxon Summary
Ranunculus hydrocharoides, commonly known as frog's-bit buttercup, is a perennial herb (aquatic) in the Ranunculaceae that is found in California and elsewhere. It occurs within Marshes and swamps, growing at elevations from 1100 to 2700 meters. Ranunculus hydrocharoides 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: |
Ranunculus hydrocharoides Gray |
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Common Name: |
frog's-bit buttercup |
| Family: | Ranunculaceae |
| Element Code: | PDRAN0L190 |
| USDA Plants Symbol: | RAHY |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb (aquatic) |
| Blooming Period: (May)Jun-Sep | (May)Jun-Sep |
| Elevation: | 1100-2700 (3610-8860) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.1 |
| Global Rank: | G4 |
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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: | 4 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 1 |
| None (X) | 1 |
| Unknown (U) | 2 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY), Mono (MNO) | |
| Quads: Name (Quad Code) | |
| Bishop (3711834), Kearsarge Peak (3611873)*, Lundy (3811912), River Spring (3711885) | |
Threat List Data from the CNDDB
| Threat List Total: | 3 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 50 % | |
| Foot traffic/trampling | 1 | 25% |
| Grazing | 1 | 25% |
| Other | 1 | 25% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 9 February 2025].