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Gentiana calycosa
EXPLORERS' GENTIAN

Higher Taxonomy
Family: GentianaceaeView DescriptionDichotomous Key

Common Name: GENTIAN FAMILY
Habit: Annual to perennial herb [to trees]. Stem: decumbent to erect, < 2 m, simple or branched. Leaf: simple, cauline, sometimes also basal, opposite or whorled, entire, sessile or basal +- petioled; stipules 0. Flower: bisexual, radial, parts in 4s or 5s except pistil 1; sepals fused, persistent; petals fused, +- persistent, sinus between lobes often unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding, stigmas 1--2. Fruit: capsule, 2-valved. Seed: many.
Genera In Family: +- 90 genera, 1800 species: worldwide; some cultivated (Eustoma, Exacum, Gentiana). Note: Gentianella tenella moved to Comastoma. Key to genera revised by Bruce G. Baldwin.
eFlora Treatment Author: James S. Pringle, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: GentianaView DescriptionDichotomous Key

Common Name: GENTIAN
Habit: Annual to perennial herb, generally glabrous. Stem: generally simple below inflorescence. Leaf: cauline, opposite (also basal or not). Inflorescence: compact cyme or flowers 1. Flower: parts generally in 5s (generally in 4s in Gentiana prostrata, 4s or 5s in Gentiana fremontii); calyx tube generally > lobes; corolla tube narrow-bell-shaped, lobes spreading, < tube, base of sinus between lobes truncate or generally with a variously shaped, sometimes fringed appendage, nectary pits 0 (nectaries on ovary stalk); ovary stalked, style +- 0 or short, entire, persistent, stigmas 2.
Species In Genus: +- 400 species: temperate to subarctic, alpine America, Eurasia. Etymology: (Gentius, king of Illyria, who used roots to treat malaria)

Gentiana calycosa Griseb.
NATIVE
Habit: Perennial herb. Stem: from caudex, +- decumbent, 2--many, 5--45 cm. Leaf: basal 0; cauline many, +- even-spaced, generally > internodes, 8--50 mm, 6--30 mm wide, ovate to +- round, obtuse to acute, obscurely, minutely dentate, not ciliate. Inflorescence: generally terminal; flowers 1--few, also 1--2 at 1--3 upper nodes or not. Flower: calyx 10--20 mm, lobes narrow- to wide-ovate, generally > 2 mm wide, much reduced or not, obtuse to acute, generally obscurely, minutely dentate, not ciliate; corolla 25--50 mm, deep blue (violet), lobes 5.5--13 mm, oblong-ovate to round, acute, sinus appendages divided < 1/2 way to base into generally 2--3 triangular segments, thread-like only toward tip. Seed: wingless. Chromosomes: 2n=26.
Ecology: Wet mountain meadows, slopes; Elevation: 1300--3900 m. Bioregional Distribution: KR, CaRH, SNH; Distribution Outside California: to British Columbia, Montana. Flowering Time: Jul--Sep Note: Has hybridized with Gentiana newberryi var. tiogana in southern SNH (Tulare Co.).
eFlora Treatment Author: James S. Pringle
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Previous taxon: Gentiana affinis var. ovata
Next taxon: Gentiana fremontii

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botanical illustration including Gentiana calycosa

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Citation for this treatment: James S. Pringle 2016. Gentiana calycosa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=26579, accessed on August 30, 2016.

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


Gentiana calycosa
click for enlargement
© 2003 Christopher L. Christie
Gentiana calycosa
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© 2012 Gary A. Monroe
Gentiana calycosa
click for enlargement
© 2012 Gary A. Monroe
Gentiana calycosa
click for enlargement
© 2012 Gary A. Monroe
Gentiana calycosa
click for enlargement
© 2010 California Academy of Sciences
Gentiana calycosa
click for enlargement
© 2003 Christopher L. Christie

More photos of Gentiana calycosa in CalPhotos


Geographic subdivisions for Gentiana calycosa:
KR, CaRH, SNH;
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.