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GENTIANACEAE GENTIAN FAMILY

James S. Pringle, except as noted

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

GENTIANA GENTIAN
Annual to perennial herb, generally glabrous. 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 America, Eurasia. (Gentius, king of Illyria, who used roots to treat malaria)

Key to Gentiana

G. newberryi A. Gray ALPINE GENTIAN
NATIVE
Perennial herb. 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 High Cascade Range, northern High Sierra Nevada (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 (High Cascade Range, northern High Sierra Nevada) 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).

Previous taxon: Gentiana fremontii
Next taxon: Gentiana newberryi var. newberryi

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 25 2014
Citation for this treatment: [Author of taxon treatment] 2013. Gentiana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=26591, accessed on Oct 25 2014

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Geographic subdivisions indicated for the distribution of Gentiana newberryi 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.
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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.