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Key to families | Table of families and genera

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RANUNCULACEAE BUTTERCUP FAMILY

Margriet Wetherwax & Dieter H. Wilken, family description, key to genera

Annual, perennial herb, woody vine [shrub], occasionally aquatic. Leaf: generally basal and cauline, alternate or opposite, simple or compound; petioles at base generally flat, occasionally sheathing or stipule-like. Inflorescence: cyme, raceme, panicle, or flowers 1. Flower: generally bisexual, generally radial; sepals 3–6(20), free, early-deciduous or withering in fruit, generally green; petals 0–many, generally free; stamens generally 5–many, staminodes generally 0; pistils 1–many, ovary superior, chamber 1, style 0–1, generally ± persistent as beak, ovules 1–many. Fruit: achene, follicle, berry, ± utricle in Trautvetteria, in aggregate or not, 1–many-seeded.
± 60 genera, 1700 species: worldwide, especially northern temperate, tropical mountains; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Helleborus, Nigella). some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus). [Whittemore & Parfitt 1997 FNANM 3:85–271] Taxa of Isopyrum in TJM (1993) moved to Enemion; Kumlienia moved to Ranunculus. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Ranunculaceae

CLEMATIS CLEMATIS, VIRGIN'S BOWER

James S. Pringle & Frederick B. Essig

Plant ± woody vine; occasionally dioecious. Leaf: generally 1–2-pinnate, cauline, opposite; petiole generally tendril-like; leaflets ovate to lanceolate, generally irregularly 2–3-lobed or coarsely toothed, occasionally entire. Inflorescence: 1-flowered to panicle, axillary [terminal]. Flower: unisexual; sepals generally 4, free, petal-like, white to cream [brightly colored]; petals 0; stamens many, free; pistils 5–many. Fruit: achene, each generally with elongate, feathery style.
300 species: worldwide; Clematis terniflora DC., cultivated. (Greek: twig) [Pringle 1999 Clematis 1999:12–19] Clematis drummondii Torr. & A. Gray undocumented for California.
Unabridged references: [Tamura 1987 Acta Phytotax Geobot 38:38–44]

Key to Clematis

C. ligusticifolia Nutt. WESTERN VIRGIN'S BOWER
NATIVE
Leaf: leaflets 5–15, irregularly lobed or toothed, largest 2–9 cm. Inflorescence: several- to many-flowered. Flower: sepals 6–10 mm, hairy abaxially, adaxially; stamens 25–50, 5–9 mm, ± = sepals; pistils 25–65. Fruit: body hairy.
Along streams, wet places; < 2400 m. California; to British Columbia, South Dakota, New Mexico, northwestern Mexico. Jun–Sep [Online Interchange]

Previous taxon: Clematis lasiantha
Next taxon: Clematis pauciflora

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 21 2014
Citation for this treatment: [Author of taxon treatment] 2013. Clematis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=19683, accessed on Sep 21 2014

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Geographic subdivisions indicated for the distribution of Clematis ligusticifolia Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.