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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

ENEMION FALSE RUE-ANEMONE

Bruce A. Ford

Perennial herb from clustered, slender to fusiform or ± spheric fleshy roots, glabrous. Stem: ascending to erect; branches 0(–few). Leaf: 2-ternate; basal petioles generally > blades, cauline short to ± 0; leaflets wide-ovate to wedge-shaped-obovate, margins entire to deeply 2–3 lobed. Inflorescence: terminal or axillary, cymes or racemes, 2–10 flowered, or flowers 1. Flower: sepals generally 5, petal-like; petals 0; stamens 10–many; pistils [2]3–10, stalk-like base 0 or short. Fruit: follicle, glabrous, veins obvious, stalk-like base curved or not, occasionally 0, beak straight to recurved. Seed: ± red-brown, smooth, wrinkled or minutely pubescent.
6 species: temperate North America, Eurasia.
Unabridged references: [Calder & Taylor 1963 Madroño 17:69–76]

Key to Enemion

E. stipitatum (A. Gray) J.R. Drumm. & Hutch. SISKIYOU RUE-ANEMONE
NATIVE
Plant 4–12 cm. Stem: (1)3–7, decumbent to erect, generally simple. Leaf: 4–11 cm; segment lobes generally 3, generally > 1/2 segment length. Flower: sepals 1–2.5 mm wide, white; stamens 2–3 mm; pistils 3–10. Fruit: 4–7 mm.
Shaded slopes, chaparral, oak woodland, mixed-evergreen forest; 200–1500 m. Northwestern California, Cascade Range, n Sierra Nevada, se San Francisco Bay Area (Mount Hamilton Range), Modoc Plateau; to Oregon. [Isopyrum stipitatum A. Gray] San Francisco Bay Area plants grow with, similar to Enemion occidentale. Feb–Apr [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 30 2014
Citation for this treatment: [Author of taxon treatment] 2013. Enemion, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=24252, accessed on Oct 30 2014

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Geographic subdivisions indicated for the distribution of Enemion stipitatum 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.