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Vascular Plants of California
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Anemone tuberosa

Higher Taxonomy
Family: RanunculaceaeView DescriptionDichotomous Key
Habit: 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.
Genera In Family: +- 60 genera, 1700 species: worldwide, especially northern temperate, tropical mountains; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Helleborus, Nigella). Toxicity: some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus). Note: Taxa of Isopyrum in TJM (1993) moved to Enemion; Kumlienia moved to Ranunculus.
eFlora Treatment Author: Margriet Wetherwax & Dieter H. Wilken, family description, key to genera
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: AnemoneView DescriptionDichotomous Key

Common Name: ANEMONE
Habit: Perennial herb from caudex, rhizome, or tuber. Leaf: basal, generally many, simple to compound, generally petioled; blade or leaflets lobed to dissected or not, margins entire or toothed; in flower or fruit withered or not. Inflorescence: terminal, flowers 1 or 2--7[9] in cymes; peduncle erect; pedicel elongated in fruit; involucre bracts sessile or stalked, generally in 1--2 whorls of 2--5[9], simple to compound, +- like leaves or leaflets in size, shape. Flower: receptacle elongated in fruit; sepals 5--10[27], petal-like; petals generally 0; stamens 10--200; pistils many, styles persistent as beaks. Fruit: achene.
Etymology: (Greek: flower shaken by wind) Note: Species with long, plumose styles sometimes placed in Pulsatilla.
eFlora Treatment Author: Scott Simono
Reference: Dutton et al. 1997 FNANM 3:139--155
Unabridged Reference: Hoot et al. 1994 Syst Bot 19:169--200
Anemone tuberosa Rydb.
Habit: Plant 10--30(40) cm; caudex slender, top with tuber. Leaf: 1--3(5); petiole 5--7 cm; blade 1--2 ternate, generally glabrous; leaflet margins +- lobed or dissected in distal 2/3; terminal leaflet (1.5)2--3(3.5) cm, 1--2(2.5) cm wide; ultimate segments 4--8(12) mm wide. Inflorescence: flowers 1--3(5); peduncle +- glabrous proximally, woolly distally; involucre bracts in (1)2 whorls of 3, +- sessile, simple, 1--2(3)-pinnately lobed or dissected, sparsely soft-hairy, margins irregularly minutely serrate; ultimate segments occasionally 1.5--2.5 mm wide. Flower: sepals 8--10, 10--14(20) mm, (2)3--5(6) mm wide, linear-oblong, pink to white, sparsely hairy; stamens 50--60. Fruit: body 2--3.5 mm, round, flat, densely woolly; pedicel (5)7--15(22) cm; beak +- 1.5 mm, straight, soft-puberulent; aggregate (15)20--30 mm, ellipsoid. Chromosomes: 2n=16.
Ecology: Rocky slopes, ledges; Elevation: 900--1900 m. Bioregional Distribution: e DMtns, e DMoj, ne DSon; Distribution Outside California: to Utah, Texas, northern Mexico. Flowering Time: Apr--May
Jepson eFlora Author: Scott Simono
Reference: Dutton et al. 1997 FNANM 3:139--155
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Anemone oregana var. oregana
Next taxon: Aquilegia

Botanical illustration including Anemone tuberosabotanical illustration including Anemone tuberosa

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Citation for this treatment: Scott Simono 2012, Anemone tuberosa, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on July 20, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on July 20, 2024.

Anemone tuberosa
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©2009 Christopher L. Christie
Anemone tuberosa
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©2009 Christopher L. Christie
Anemone tuberosa
click for image enlargement
©2009 Christopher L. Christie
Anemone tuberosa
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©2009 Christopher L. Christie
Anemone tuberosa
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©2003 James M. Andre

More photos of Anemone tuberosa
in CalPhotos

Geographic subdivisions for Anemone tuberosa:
e DMtns, e DMoj, ne DSon
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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 occurrence).


Data provided by the participants of the  Consortium of California Herbaria.

View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month Flowering-Fruiting Monthly Counts

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).