Jepson Herbarium
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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

Perennial (non- flower rosettes preceding flower-stems, plants dying after flowering in Frasera albomarginata, Frasera parryi, Frasera puberulenta, Frasera speciosa, and Frasera umpquaensis; non- flower 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.
± 15 species: temperate North America. (J. Fraser, Scottish collector of North America plants, 1750–1811) [von Hagen & Kadereit 2002 Syst Bot 27:548–572]
Unabridged references: [St. John 1941 Amer Midl Naturalist 21:1–29]

Plant 3–6 dm, glabrous or stem puberulent.
Stem: 1–few.
Leaf: white-margined; basal 2–9 cm, 5–10 mm wide, oblanceolate, tips acute; cauline whorled ( distal-most opposite or not), distal lance- linear, tips acuminate.
Inflorescence: open; pedicels 5–50 mm.
Flower: calyx 5–12 mm; corolla 8–14 mm, green-white, often purple-dotted, lobes lance- oblong, mucronate, ridge between stamens fringed, nectary pit 1 per lobe, oblong, ± truncate to 2-lobed at tip. [Swertia albomarginata (S. Watson) Kuntze] [Online Interchange]

Inflorescence: branches puberulent.
Flower: calyx lobes puberulent; nectary pit ± truncate or ± notched at tip.
Dry, open woodland; 1500–2200 m. Desert Mountains (Clark Mtn Range);

Previous taxon: Frasera albomarginata var. albomarginata
Next taxon: Frasera neglecta

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; 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.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. 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 Manual flowering time.