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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

CALTHA MARSH MARIGOLD

Bruce A. Ford


Perennial herb from short caudex [long, slender stolons], generally fleshy, glabrous. Stem: 1–few. Leaf: simple, oblong-ovate to spheric-reniform or cordate, crenate to dentate [entire]; basal petioles > blades. Inflorescence: cyme or flowers 1, terminal or axillary, bracts leaf-like. Flower: sepals 5–12, petal-like, white to yellow; petals 0; pistils 5–many, ovules. Fruit: follicle, sessile to short-stalked, generally beaked. Seed: brown, wrinkled.
10 species: worldwide. (Greek: ancient name, from bowl-shaped flower)

Key to Caltha

1. Stem leaves 0–1; sepals 8–20 mm, white to yellow ..... C. leptosepala

1' Stem leaves > 1; sepals (6)10–25 mm, yellow to orange ..... C. palustris

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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