Caltha palustris subsp. radicans (T.F. Forst.) Beck
yellow marsh-marigold
Ranunculaceae (Buttercup family)

Introduction to Vascular Plants


© Brian Klinkenberg     (Photo ID #273)


E-Flora BC Static Map

Distribution of Caltha palustris subsp. radicans
Click here to view the full interactive map and legend

Species Information

Perennial herb from a short, thick stem-base with fibrous roots; stems erect or ascending, or with age reclining and rooting at nodes, 10-60 cm tall/long; plants smooth.
Basal leaves circular to egg-, kidney-, or heart-shaped, 2-13 cm long, 2-19 cm wide, margins entire to finely round-toothed, long-stalked; stem leaves 2 or more, smaller, short-stalked or unstalked.
Inflorescence a 1- to 7-flowered cyme terminating the stem or branches, the flowers 1-4.5 cm wide; flower stalks leafy; petals absent; sepals 5 or 6, deep yellow or orange, broadly egg-shaped or elliptic, 10-25 mm long; stamens many.
Follicles, 5 to 15 (25), spreading, unstalked, ellipsoid, 8-15 mm long, 3-4.5 mm wide; beaks straight or curved, 0.5-2 mm long; seeds brown, elliptic, 1.5-2.5 mm long, surface wrinkled.

SourceThe Illustrated Flora of British Columbia

Habitat and Range

Bogs and shallow, brackish marshes in the lowland zone; rare along the coast; N to AK, YT and NT, E to NF and S to WV, TN, NC, NE and OR.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Caltha palustris var. radicans (T.F. Forst.) Beck