Directory       News       Site Map       Home
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon


James S. Pringle, except as noted

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.
± 90 genera, 1800 species: worldwide; some cultivated (Eustoma, Exacum, Gentiana). [Struwe & Albert 2002 Gentianaceae. Cambridge Univ Press] Gentianella tenella moved to Comastoma. Key to genera revised by Bruce G. Baldwin. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Wood & Weaver 1982 J Arnold Arbor 63:441–487; Struwe & Albert 2002 Gentianaceae: Systematics and Natural History. Cambridge Univ Press]

Key to Gentianaceae

Annual, glabrous. Leaf: basal, cauline, opposite. Inflorescence: terminal, sometimes also subterminal cymes; pedicels generally < subtending internode. Flower: parts generally in 5s; calyx tube < lobes; corolla < 2 cm, narrow-funnel-shaped, lobes spreading, < tube, entire, with fringes on adaxial surface near base, nectary pits 0 (nectaries on lower corolla tube); ovary sessile; style ± 0, stigmas 2, persistent.
± 275 species: ± worldwide, especially temperate to alpine, except Africa. (Latin: little Gentiana) [Nesom 1991 Phytologia 70:1–20]
Unabridged references: [Gillett 1957 Ann Missouri Bot Gard 44:195–269; Nesom 1991 Phytologia 70:1–20.]

G. amarella (L.) Börner subsp. acuta (Michx.) J.M. Gillett NORTHERN GENTIAN
Plant 5–80 cm. Stem: erect, 1, often with long branches near base, simple or with shorter branches above. Leaf: basal withering early; lower cauline < 45 mm, spoon-shaped to elliptic-oblong, crowded; upper cauline < 60 mm, lance-oblong to ovate, generally << internodes. Inflorescence: flowers several to many; pedicels generally < 2.5(50) cm. Flower: calyx 5–10(18) mm, lobes 1–6 × tube, linear to lanceolate; corolla 7–15(21) mm, blue to rose-violet or white, lobes 3–5.5 mm, ovate-triangular, fringes 0–4 mm.
2n=18. Wet meadows, bogs; 1500–3500 m. Klamath Ranges, High Cascade Range, High Sierra Nevada, San Bernardino Mountains, White and Inyo Mountains; to Alaska, eastern North America, Baja California, eastern Asia. [Gentiana amarella var. acuta (Michx.) Herder] Jul–Sep [Online Interchange]

Previous taxon: Gentianella
Next taxon: Gentianopsis


Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 26 2015
Citation for this treatment: [Author of taxon treatment] 2013. Gentianella, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 26 2015

Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.

Geographic subdivisions indicated for the distribution of Gentianella amarella subsp. acuta 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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records


CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.