Ranunculaceae

Caltha biflora DC.

Family: Ranunculaceae
Genus: Caltha

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Caltha biflora (Caltha biflora) — FlowerPhoto: John Brew, CC BY-SA 4.0, from iNaturalist

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Synonyms

Caltha biflora subsp. howellii (Huth) Abrams
Caltha howellii (Huth) Greene
Caltha leptosepala subsp. biflora (DC.) P.G.Smit
Caltha leptosepala var. biflora (DC.) G.Lawson
Caltha leptosepala var. howellii Huth
Caltha rotundifolia var. howellii (Huth) K.C.Davis

Flowers

In flower: May to July (from 119 flowering iNaturalist observations worldwide)

Photos

FlowerPhoto: John Brew, CC BY-SA 4.0, from iNaturalist
FlowerPhoto: David Anderson, CC BY 4.0, from iNaturalist
FlowerPhoto: David Anderson, CC BY 4.0, from iNaturalist
FlowerPhoto: David Anderson, CC BY 4.0, from iNaturalist
FruitPhoto: elik03, CC BY 4.0, from iNaturalist
Photo: Kate Manning, CC0, from iNaturalist
Photo: Shane Johnson, CC0, from iNaturalist
Photo: Sam Beaumont, CC BY 4.0, from iNaturalist
Photo: Sean Haight, CC0, from iNaturalist
Photo: mammuthuss, CC BY 4.0, from iNaturalist
Photo: Randal, CC0, from iNaturalist
Photo: bluefly, CC0, from iNaturalist

More in Caltha

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.