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Delphinium depauperatum
DWARF, BLUE MOUNTAIN, or MOUNTAIN LARKSPUR

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: DelphiniumView DescriptionDichotomous Key

Common Name: LARKSPUR
Habit: Perennial herb; root generally < 10 cm, +- fibrous or fleshy; rootstock buds in life generally obscure (0 or obscure on herbarium specimens). Stem: erect, generally 1, generally unbranched; base generally +- as wide as, generally firmly attached to root, generally +- red or purple. Leaf: simple, basal and cauline, petioled; blades generally palmately lobed, deep lobes generally 3--5, generally < 6 mm wide, generally also lobed; cauline proximal generally dry, generally 0 in flower, distal merging into bracts. Inflorescence: raceme or +- branched, terminal; flowers generally 10--25; pedicels generally +- spreading. Flower: bilateral; sepals 5, petal-like, generally spreading, generally +- dark blue, uppermost spurred; petals 4, << sepals, upper 2 with nectar-secreting spurs enclosed in uppermost sepal, lower 2 clawed, with blades (limbs) generally 4--8 mm, 2-lobed, generally +- perpendicular to claws, generally colored like sepals, generally obviously hairy especially on lobes proximally, inner and outer lobes of each blade generally equally hairy; pistils 3(5). Fruit: follicles 3(5), erect, length generally 2.5--4 × width. Seed: generally winged in youth, collar inflated at widest end or generally not, dark brown to black, generally appearing white; coat cell margins generally straight.
Species In Genus: +- 300 species: arctic, northern temperate, subtropics, tropical mountains worldwide; 3 commonly cultivated as ornamental in North America. Etymology: (Latin: dolphin, from bud shape) Toxicity: Most species highly TOXIC, attractive to, killing many cattle, fewer horses, sheep. Note: Hybrids common, especially in disturbed places. Root length is of coarse parts only.
eFlora Treatment Author: Jason A. Koontz & Michael J. Warnock

Delphinium depauperatum Nutt.
NATIVE
Habit: Root < 5 cm. Stem: 7--40(60) cm, base +- glabrous. Leaf: generally basal, +- glabrous, cauline much reduced; lobes 5--10. Inflorescence: cylindric, +- 1-sided; pedicels ascending, 7--73 mm, 15--50 mm apart, puberulent, generally glandular; flowers 4--22. Flower: lateral sepals 11--13 mm, spur 12--16 mm. Fruit: 9--16 mm. Seed: winged, shiny, +- bumpy.
Ecology: Moist meadows; Elevation: 1800--2600 m. Bioregional Distribution: CaRH, n&c SNH, Wrn; Distribution Outside California: to Washington, Montana, Nevada. Flowering Time: Jun--Jul Note: Hybridizes with Delphinium nudicaule, Delphinium nuttallianum (Delphinium ×burkei Greene).
Synonyms: Delphinium cyanoreios Piper; Delphinium diversifolium Greene; Delphinium diversifolium subsp. harneyense Ewan
eFlora Treatment Author: Jason A. Koontz & Michael J. Warnock
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Citation for this treatment: Jason A. Koontz & Michael J. Warnock 2016. Delphinium depauperatum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=22460, accessed on September 27, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 27, 2016.


Delphinium depauperatum
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© 2006 George W. Hartwell
Delphinium depauperatum
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© 2006 George W. Hartwell
Delphinium depauperatum
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© 2009 Barry Breckling
Delphinium depauperatum
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© 2009 Barry Breckling
Delphinium depauperatum
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© 2013 Dana York
Delphinium depauperatum
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© 2013 Dana York

More photos of Delphinium depauperatum in CalPhotos


Geographic subdivisions for Delphinium depauperatum:
CaRH, n&c SNH, Wrn;
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.