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

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.
± 15 species: temperate North America, Eurasia. (Greek: resembling Gentiana) Gentianopsis thermalis (Kuntze) H.H. Iltis occurs near CA, in NV.
Unabridged note: Efforts should be made to find in CA 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 NV (Washoe County; Lake Tahoe, creek at Incline, alt. 6200 ft., sandy beach along stream).

Perennial from root-sprouts, stems well separated, 4–40 cm.
Stem: erect.
Leaf: basal, lower cauline < 20 mm, < 5 mm wide, spoon-shaped, withering early (especially basal), upper cauline several, < 25 mm, < 6(8) mm wide, lance- elliptic, obtuse to acute.
Inflorescence: peduncle 1.3–11(14) cm, generally < 2.5(4) × subtending internode, < whole stem.
Flower: calyx 9–27 mm; corolla 17–45 mm.
Seed: striate-ridged, pointed.
Wet meadows; 1200–3400 m. Klamath Ranges, High North Coast Ranges, High Cascade Range, High Sierra Nevada, San Bernardino Mountains;

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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.