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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. 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 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.Key to Gentiana
± 400 species: temperate to subarctic, alpine America, Eurasia. (Gentius, king of Illyria, who used roots to treat malaria)
Perennial herb. Stem: from caudex, decumbent to erect, several to many, 5–70 cm, puberulent. Leaf: basal 0; cauline many, 10–45 mm, 4–20 mm wide, minutely ciliate, lower < internodes, elliptic to ovate, upper > internodes, ovate to lanceolate, ± acute. Inflorescence: terminal; flowers 1–7, also 1–5 at 1–6 upper nodes or not. Flower: calyx 5–23 mm, lobes linear to narrow-elliptic, generally < 1.5 mm wide, acute, minutely ciliate, some vestigial or not; corolla (12)25–45 mm, blue (white), lobes generally < 7 mm, oblong-ovate, mucronate, sinus appendages divided ± to base into 2 ± triangular parts, these thread-like only toward tip. Seed: winged.
2n=26. Meadows, shrubby places; < 2300 m. North Coast, Klamath Ranges, High Cascade Range, Central Coast, San Francisco Bay Area, Warner Mountains; to Washington, Idaho. [Gentiana affinis var. parvidentata Kusn.] Some plants in northern California approach Gentiana affinis var. affinis of Rocky Mountains. Jul–Aug [Online Interchange]
Unabridged synonyms: [Gentiana affinis var. parvidentata Kusn.; Gentiana oregana A. Gray]
Previous taxon: Gentiana
Next taxon: Gentiana calycosa
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 4 2015
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=59422, accessed on Oct 4 2015
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|Geographic subdivisions indicated for the distribution of Gentiana affinis var. ovata|| 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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(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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