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Caltha leptosepala ssp. howellii
Caltha leptosepala DC. ssp. howellii (Huth) P.G. Sm.
Howell's Marsh Marigold
Ranunculaceae (Buttercup Family)
Synonym(s): Caltha biflora, Caltha biflora ssp. howellii, Caltha howellii, Caltha leptosepala ssp. biflora, Caltha leptosepala var. biflora
USDA Symbol: CALEH2
USDA Native Status: L48 (N), AK (N), CAN (N)
Plant Characteristics
Duration: PerennialHabit: Herb
Fruit Type: Follicle
Size Notes: Up to about 10 inches tall when flowering.
Bloom Information
Bloom Color: White , YellowBloom Time: May , Jun , Jul , Aug
Bloom Notes: White to pale yellow.
Distribution
USA: AK , CA , ID , MT , NV , OR , WACanada: BC
Native Habitat: Bog/Fen
Growing Conditions
Soil Moisture: WetBenefit
Conspicuous Flowers: yesWeb Reference
Webref 62 - Burke Herbarium Image Collection (2020) University of WashingtonWebref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Caltha leptosepala ssp. howellii in USDA PlantsFNA: Find Caltha leptosepala ssp. howellii in the Flora of North America (if available)
Google: Search Google for Caltha leptosepala ssp. howellii
Metadata
Record Modified: 2022-11-03Research By: TWC Staff