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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.

 

DICENTRA

Gary L. Hannan


Perennial herb, glabrous, glaucous or not; sap colorless. Leaf: basal, deeply dissected, segments often lobed. Inflorescence: raceme, panicle, or 1-flowered. Flower: biradial, nodding to erect; sepals 2, shed after flower; petals 4, white or cream to pale yellow to pink or pink-tipped, persistent or not, outer 2 free, lanceolate, alike, both pouched at base, inner 2 adherent at tips, oblanceolate, ± crested on back; stamens 6, ± fused in 2 sets opposite outer petals; ovary cylindric to long-conic, placentas 2, style 1, stigma lobes 2. Fruit: oblong, fusiform to ovate, or conic, dehiscent from tip. Seed: few, 1–2 mm, oblong to reniform, smooth to finely netted, black; fleshy appendage present.
18 species: North America, Asia; some ornamental. (Greek: twice spurred, from outer petals) Other species in TJM (1993) moved to Ehrendorferia (Liden et al. 1997 Plant Syst Evol 206:411–420).

Key to Dicentra

1. Inflorescence 2–30-flowered; crest on inner petals conspicuous, extending 1–2 mm beyond tip; plant rhizomed, tubers 0, bulblets 0

2. Base of central stamen of each set aligned with lateral 2; Northwestern California, Cascade Range, High Sierra Nevada, n Central Western California; < 2300 m ..... D. formosa

2' Base of central stamen of each set looped into base of outer petal; s High Sierra Nevada; 2200–3100 m ..... D. nevadensis

1' Inflorescence 1–3-flowered; crest on inner petals 0 or obscure, not extending beyond tip; plant with tubers or bulblets

3. Outer petals recurved < 1/2 length; inflorescence 1–3-flowered ..... D. pauciflora

3' Outer petals recurved > 1/2 length; inflorescence 1-flowered; ..... D. uniflora

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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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