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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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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.
± 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 to perennial herb, generally glabrous.Key to Gentiana
Stem: generally simple below inflorescence.
Leaf: cauline, opposite (also basal or not).
Inflorescence: compact cyme or flowers 1.
Flower: parts generally in 5s (generally in 4s in Gentiana prostrata, 4s or 5s in Gentiana fremontii); calyx tube generally > lobes; corolla tube narrow- bell-shaped, lobes spreading, < tube, base of sinus between lobes truncate or generally with a variously shaped, sometimes fringed appendage, nectary pits 0 (nectaries on ovary stalk); ovary stalked, style ± 0 or short, entire, persistent, stigmas 2.
± 400 species: temperate to subarctic, alpine Am, Eurasia. (Gentius, king of Illyria, who used roots to treat malaria)
Stem: arising laterally from caudex, below rosette, decumbent, 1–several, 0.5–10(35) cm.
Leaf: basal, lower cauline 8–50(75) mm, 2–25 mm wide, widely spoon-shaped to oblanceolate, rounded or mucronate; upper cauline few, generally > internodes, 6–30(45) mm, 1–8(13) mm wide, oblanceolate to linear, acute.
Inflorescence: flowers 2–5 or generally 1.
Flower: calyx (10)14–30 mm, lobes linear to narrow- ovate, acute; corolla 23–55 mm, lobes 7–17 mm, elliptic-obovate, short- acuminate, sinus appendages divided into 2 triangular, ± serrate to jagged-cut parts tapered to thread-like tips.
Seed: winged. Varieties intergrade in CaRH, n SNH (e.g., plants with large stem, leaf, flower and white corollas, or plants with small stem, leaf, flower and blue corollas). [Online Interchange]
Unabridged note: Varieties intergrade in central part (CaRH, n SNH) of sp. range (e.g., plants with stem, leaf, flower in upper part of size ranges for sp. but with white corollas, or plants with stem, leaf, flower in lower part of size ranges for sp. but with blue corollas).
St, leaf, flower often in lower to middle part of size ranges for sp.
Flower: corolla white to pale blue, abaxially dark brown-purple on, below lobes.
2n=26. Wet mtn meadows; 1500–4000 m. High Sierra Nevada, White and Inyo Mountains;
Previous taxon: Gentiana newberryi var. newberryi
Next taxon: Gentiana plurisetosa
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].
Copyright © 2012 Regents of the University of California
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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 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.
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