western buttercup

Ranunculus occidentalis

Member of buttercups (genus Ranunculus)
buttercup family (family Ranunculaceae)
dicots (class Magnoliopsida)
yellow in flowering plants

There are no wild members of this species in the bay area.

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• stem erect to decumbent
• 5–6 petals, 5–10 mm long, 3–6 mm wide, yellow
• receptacle glabrous
• basal and proximal cauline leaves 3-parted or 1-ternate, ultimate segments entire or dentate
• Sierra Azul, Del Valle, Mt. Diablo

Toxicity of buttercup, ranunculus (Ranunculus spp.):
1 – Skin contact with these plants can cause symptoms ranging from redness, itching, and rash to painful blisters like skin burns.
3 – Ingestion of these plants is expected to cause nausea, vomiting, diarrhea and other symptoms that may cause illness but is not life-threatening.

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Chris’s observations: 1 (none are research grade)

Locations:

• Sierra Azul OSP

Months:

• May: 1

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Taxon info: iNaturalist – Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora