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Frasera speciosa

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: FraseraView DescriptionDichotomous Key

Habit: Perennial herb (non-flowering rosettes preceding flower-stems, plants dying after flowering in Frasera albomarginata, Frasera parryi, Frasera puberulenta, Frasera speciosa, and Frasera umpquaensis; non-flowering rosettes appearing with flower-stems in others). Leaf: basal +- petioled; cauline opposite or whorled, < basal, base often fused-sheathing. Inflorescence: cyme or panicle of dense clusters. Flower: parts in 4s; calyx fused near base, lobes lanceolate; corolla rotate (bell-shaped), lobes >> tube, ridge between stamens fringed or scaled or 0, nectary pits prominent, 1(2) per lobe, margins of openings variously fringed; ovary sessile, style long and well differentiated or short and poorly differentiated, persistent, entire, stigmas 2.
Species In Genus: +- 15 species: temperate North America. Etymology: (J. Fraser, Scottish collector of North America pls, 1750--1811)
eFlora Treatment Author: Bruce G. Baldwin

Frasera speciosa Douglas ex Griseb.
Habit: Plant 7--20 dm, glabrous or stem, leaves puberulent. Stem: 1. Leaf: basal 7--50 cm, 1--15 cm wide, oblanceolate to elliptic-obovate, tips rounded to acute; cauline whorled, lance-oblong, tips acute. Inflorescence: elongate, open proximally, +- dense distally; pedicels 1--10 cm. Flower: calyx 12--25 mm; corolla 12--20 mm, light yellow-green, purple-dotted or -streaked, lobes elliptic-oblong, acute to short-acuminate, ridge between stamens with deeply divided scales, nectary pits 2 per lobe, narrowly elliptic. Chromosomes: 2n=78.
Ecology: Montane meadows, open woodland; Elevation: 1500--3000 m. Bioregional Distribution: KR, NCoRH, SNH, Wrn; Distribution Outside California: to Washington, South Dakota, New Mexico. Flowering Time: Jul--Aug
Synonyms: Swertia radiata (Kellogg) Kuntze; Swertia radiata var. radiata
eFlora Treatment Author: Bruce G. Baldwin
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botanical illustration including Frasera speciosa


Citation for this treatment: Bruce G. Baldwin 2016. Frasera speciosa, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 06, 2016.

Frasera speciosa
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© 1999 California Academy of Sciences
Frasera speciosa
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© 2009 Keir Morse
Frasera speciosa
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© 2012 Gary A. Monroe
Frasera speciosa
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© 2015 Steve Matson
Frasera speciosa
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© 2015 Barry Breckling
Frasera speciosa
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© 2009 Keir Morse

More photos of Frasera speciosa in CalPhotos

Geographic subdivisions for Frasera speciosa:
KR, NCoRH, SNH, Wrn;
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.