Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to 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 |
Next taxon
Gentianella amarella subsp. acuta

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: GentianellaView Description 

Habit: 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.
Species In Genus: +- 275 species: +- worldwide, especially temperate to alpine, except Africa. Etymology: (Latin: little Gentiana)

Gentianella amarella (L.) Börner subsp. acuta (Michx.) J.M. Gillett
Habit: 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. Chromosomes: 2n=18.
Ecology: Wet meadows, bogs; Elevation: 1500--3500 m. Bioregional Distribution: KR, CaRH, SNH, SnBr, W&I; Distribution Outside California: to Alaska, eastern North America, Baja California, eastern Asia. Flowering Time: Jul--Sep
Synonyms: Gentiana amarella var. acuta (Michx.) Herder
eFlora Treatment Author: James S. Pringle
Jepson Online Interchange

Previous taxon: Gentianella
Next taxon: Gentianopsis

Name Search
botanical illustration including Gentianella amarella subsp. acuta


Citation for this treatment: James S. Pringle 2016. Gentianella amarella subsp. acuta, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 30, 2016.

Gentianella amarella subsp. acuta
click for enlargement
© 2011 Barry Breckling
Gentianella amarella subsp. acuta
click for enlargement
© 2014 Steve Matson
Gentianella amarella subsp. acuta
click for enlargement
© 2010 Barry Breckling
Gentianella amarella subsp. acuta
click for enlargement
© 2010 Steve Matson
Gentianella amarella subsp. acuta
click for enlargement
© 2016 Dana York
Gentianella amarella subsp. acuta
click for enlargement
© 2016 Dana York

More photos of Gentianella amarella subsp. acuta in CalPhotos

Geographic subdivisions for Gentianella amarella subsp. acuta:
KR, CaRH, SNH, SnBr, 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).

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.