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Gentianopsis holopetala

Higher Taxonomy
Family: GentianaceaeView DescriptionDichotomous Key

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: GentianopsisView DescriptionDichotomous Key

Habit: Annual, perennial herb, glabrous. Leaf: basal, cauline, opposite. Inflorescence: flower 1 per stem or branch. Flower: parts in 4s; calyx tube distinct, lobes lanceolate, acuminate; corolla funnel-shaped, blue (white), lobes <= tube, oblong to elliptic-obovate, obtuse or rounded, +- entire to serrate, jagged, or fringed, without fringes or scales on adaxial surface, nectary pits 0 (nectaries on corolla tube near base); ovary stalked, style short or indistinct, persistent, entire, stigmas 2.
Species In Genus: +- 15 species: temperate North America, Eurasia. Etymology: (Greek: resembling Gentiana) Note: Gentianopsis thermalis (Kuntze) H.H. Iltis occurs near California, in Nevada.
Unabridged Note: Efforts should be made to find in California Gentianopsis thermalis (Kuntze) H.H. Iltis [Gentianopsis detonsa (Rottb.) Ma var. elegans (A. Nelson) N.H. Holmgren] (stems 1--several, generally branched; basal leaves generally present at flower; corolla (20)35--75 mm, lobes proximally fringed, distally dentate), which occurs very near the state line in Nevada (Washoe County; Lake Tahoe, creek at Incline, alt. 6200 ft., sandy beach along stream).

Gentianopsis holopetala (A. Gray) H.H. Iltis
Habit: Annual 3--45 cm. Stem: +- decumbent to erect. Leaf: basal, lower cauline < 70 mm, < 15 mm wide, spoon-shaped, rounded to acute, upper cauline few, < 60 mm, < 10 mm wide, lance-elliptic to linear, acute. Inflorescence: peduncle (0.4)2.5--21 cm, generally > 2.5 × subtending internode, generally > whole stem. Flower: calyx (10)14--36 mm; corolla 20--55 mm. Seed: papillate, obtuse. Chromosomes: 2n=78.
Ecology: Wet meadows; Elevation: 1800--4000 m. Bioregional Distribution: c&s SNH, W&I; Distribution Outside California: western Nevada. Flowering Time: Jul--Sep
Synonyms: Gentiana holopetala (A. Gray) T. Holm
eFlora Treatment Author: James S. Pringle
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botanical illustration including Gentianopsis holopetala


Citation for this treatment: James S. Pringle 2016. Gentianopsis holopetala, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 29, 2016.

Gentianopsis holopetala
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© 2011 Barry Breckling
Gentianopsis holopetala
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© 2000 Larry Blakely
Gentianopsis holopetala
click for enlargement
© 2009 Barry Breckling
Gentianopsis holopetala
click for enlargement
© 2009 Barry Breckling
Gentianopsis holopetala
click for enlargement
© 2002 Larry Blakely
Gentianopsis holopetala
click for enlargement
© 2002 Larry Blakely

More photos of Gentianopsis holopetala in CalPhotos

Geographic subdivisions for Gentianopsis holopetala:
c&s SNH, W&I;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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.