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Aconitum columbianum

Higher Taxonomy
Family: RanunculaceaeView DescriptionDichotomous Key

Common Name: BUTTERCUP FAMILY
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: AconitumView Description 

Common Name: MONKSHOOD
Habit: Perennial herb from rhizome or tuber; roots fibrous or fleshy. Stem: 1--few, generally erect, generally simple. Leaf: palmately divided; segments 3--7, toothed to lobed; cauline gradually reduced distally on stem. Inflorescence: raceme or panicle, terminal, bracted; pedicels ascending. Flower: bilateral; sepals 5, petal-like, lower 2, < others, pendent, lateral 2, round-reniform, upper 1 > others, hooded, sac-like, crescent-shaped to rounded-conic or cylindric, tip generally rounded to beaked; petals 2, covered by sepal hood, long-clawed, blades generally inflated, spurred; stamens 20--50; pistils generally 3. Fruit: follicle. Seed: deltoid, generally with small transverse wings, dark brown to black.
Species In Genus: > 100 species: boreal arctic, temperate montane to alpine North America, Eurasia. Etymology: (Greek: aconiton, of unknown origin). Toxicity: Most species highly TOXIC, causing death in livestock, humans.
eFlora Treatment Author: Petra Foerster

Aconitum columbianum Nutt.
NATIVE
Habit: Plant 3--15(20) dm. Stem: erect, less generally reclining or twining above; bulblets 0 or in axils of leaves, inflorescence. Leaf: 5--15 cm wide; deeply 3--5 divided, segments wedge- to diamond-shaped, toothed to irregularly cut or lobed distally. Inflorescence: open. Flower: sepals deep +- blue-purple to white or yellow-green, lower 7--15 mm, lanceolate to ovate, lateral 8--18 mm, +- round to reniform, upper 10--22(30) mm, 8--20(25) mm wide; petals blue to +- white. Fruit: glabrous to puberulent, glandular or not.

eFlora Treatment Author: Petra Foerster
Jepson Online Interchange
Key to Aconitum columbianum

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Next taxon: Aconitum columbianum subsp. columbianum

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Citation for this treatment: Petra Foerster 2016. Aconitum columbianum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=11849, accessed on July 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 30, 2016.


Aconitum columbianum subsp. columbianum
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© 2009 Barry Breckling
Aconitum columbianum
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© 2010 Steve Matson
Aconitum columbianum
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© 2001 Larry Blakely
Aconitum columbianum
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© 2009 Keir Morse
Aconitum columbianum subsp. columbianum
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© 2015 Barry Breckling
Aconitum columbianum subsp. columbianum
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© 2006 George W. Hartwell

More photos of Aconitum columbianum in CalPhotos


Geographic subdivisions for Aconitum columbianum:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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.