Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

RANUNCULACEAE

BUTTERCUP FAMILY

Dieter H. Wilken, except as specified

Annual, perennial herb, sometimes aquatic
Leaves generally basal and cauline, generally alternate, simple or compound; petioles at base generally flat, sometimes sheathing or stipule-like
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; sepals generally 5, free, early deciduous or withering in fruit, generally green; petals 0–many, free; stamens generally 10–many; pistils 1–many, ovary superior, chamber 1, style 1, generally ± persistent in fruit as beak, ovules 1–many
Fruit: achene, follicle, berry, or utricle-like, 1–many-seeded
Genera in family: ± 60 genera, 1700 species: worldwide, especially n temp, tropical mtns; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Erianthis, Helleborus ), some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus )
Reference: [Duncan & Keener 1991 Phytologia 70:24–27]

ANEMONE

ANEMONE

Perennial from stout, simple to branched caudex, rhizome, or tuber
Stems 1–several, erect, generally simple
Leaves simple to 1-ternate, blade or leaflet toothed to dissected; basal leaves rosetted, petioled, in flower or fruit withered or persistent; cauline leaves generally 2–3, in 1–2 whorls, petiole 0 to short
Inflorescence terminal; peduncles 1–5, erect, 1-flowered, in fruit elongated
Flower radial; receptacle in fruit elongated; sepals 5–8(10), petal-like; petals 0; pistils many, styles in fruit generally persistent, generally glabrous to puberulent
Fruit: achenes, densely clustered
Species in genus: ± 100 species: temp worldwide
Etymology: (Greek: flower shaken by wind)
Some species cultivated for ornamental. Plants with long, plumose styles sometimes separated as Pulsatilla.

Native

A. occidentalis S. Watson

Plant 20–75 cm; caudex branches 0–few
Stems 1–few; hairs soft, in age ± 0 except dense at nodes
Leaves: blade 3.5–8 cm, dissected, segments linear, 1–2 mm wide; basal few, petioles 3–14 cm, soft-hairy; cauline petioles 0 to short
Inflorescence: flowers generally 1
Flower: sepals 5–8, persistent in fruit, 18–30 mm, white to purplish, lower surface soft-hairy
Fruit: cluster spheric, 20–40 mm, densely woolly to soft-hairy; styles 20–30(35) mm, plumose
Ecology: Open, rocky slopes, alpine
Elevation: 1200–3100 m.
Bioregional distribution: Klamath Ranges, Cascade Range, Sierra Nevada
Distribution outside California: to British Columbia, Montana
Horticultural information: TRY; DFCLT.

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bioregional map for ANEMONE%20occidentalis being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Anemone occidentalis
Retrieve dichotomous key for Anemone
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