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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.

 

HYDROPHYLLUM WATERLEAF

Robert Patterson & Richard R. Halse


Perennial herb; roots fleshy-fibrous or tuber-like, from rhizomes. Stem: erect, fleshy. Leaf: simple, pinnate-lobed, or compound, basal or cauline, alternate; petiole widened, clasping; leaflets toothed or lobed, hairy, generally paler abaxially. Inflorescence: generally branched, generally head-like cymes; pedicels generally elongate, recurved in fruit or not. Flower: calyx bell-shaped, lobes linear to lanceolate, acute to obtuse, glabrous or hairy, generally ciliate; corolla lobed to middle, > calyx, bell-shaped, lobes hairy; stamens equal, exserted, filaments hairy; ovary chamber 1, style 1, exserted, stigmas 2, base persistent. Fruit: capsule, 3–5 mm, spheric; tip generally bristly, loosely enclosed by calyx. Seed: 1–4, oblong to spheric, brown, net-like.
n=9.
8 species: North America. (Greek: water leaf) [Constance 1942 Amer Midl Naturalist 27:710–731]

Key to Hydrophyllum

1. Inflorescence near ground, << subtending leaves; anthers << 1 mm ..... H. capitatum var. alpinum

1' Inflorescence well above ground, generally >= subtending leaves; anthers 1–2 mm

2. Leaf wide-ovate to round; leaflets generally 3–5 ..... H. tenuipes

2' Leaf ± oblong; leaflets 7–15

3. Leaflets acute to acuminate, teeth generally 4–8 per side ..... H. fendleri var. albifrons

3' Leaflets obtuse to acute, teeth generally 2–4 per side ..... H. occidentale

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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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