Gentianopsis detonsa |
Gentianopsis virgata |
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serrate gentian, sheared gentian, western fringe gentian, windmill fringe gentian |
gentianopsis élancé, lesser fringe gentian |
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Habit | Herbs annual or biennial, 0.2–6 dm. | Herbs biennial or perhaps sometimes annuals, 0.2–5(–7) dm. | ||||||||||||||||||||
Stems | branching diverse, often from base as well as distally. |
except those of smallest plants with branches or peduncles arising from nodes distinctly above base, infrequently from base (subsp. macounii). |
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Leaves | basal usually persistent and green at flowering, blades narrowly obovate to spatulate, oblanceolate, oblong, or linear (subsp. raupii) 0.5–3.5(–6) cm × 3–18 mm, apex rounded or obtuse, sometimes subacute or acute (subsp. detonsa), at least distal cauline blades oblanceolate, narrowly elliptic, lanceolate, or linear, (0.5–)1.5–6.5 cm × 1–7(–15) mm, apex rounded to obtuse, or usually acute (subsp. detonsa). |
basal usually withered by flowering, blades spatulate to oblanceolate, 0.8–6 cm × 1–18 mm, apex rounded to acute; cauline blades linear to linear-lanceolate, 1.5–9 cm × 2–9(–12) mm, apex acute. |
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Peduncles | (0.3–)1–15 cm. |
1–20 cm. |
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Flowers | often 1 per primary stem, occasionally 2–5; calyx 7–30 mm, keel smooth, all or at least inner lobes less than 1.5 times as long as tube, lobes ovate to narrowly lanceolate, varying with subspecies; corolla pale to deep blue or occasionally pale yellow or white, 12–50 mm, lobes oblong, oblong-lanceolate, oblong-triangular, oblong-orbiculate, or proximally oblong, distally obovate to suborbiculate, varying with subspecies, 5–20 × 4–12(–15) mm, margins proximally fringed or merely erose to dentate, distally dentate; ovary ± short-stipitate. |
1–many; calyx 12–60 mm, keels usually minutely granular-scabridulous to strongly papillate-scabridulous proximally, sometimes smooth, all or at least inner lobes less than 1.5 times as long as tube, outer lobes linear-lanceolate, apices acuminate to attenuate, inner lobes lance-ovate to ovate, apices acute to acuminate; corolla deep blue or rarely pale blue, rose-violet, white, or pale yellow, 18–60(–75) mm, lobes oblong-obovate to ovate-elliptic or orbiculate, 10–30 × 3–18 mm, margins proximally fringed, distally dentate or erose, or sometimes entire (subsp. victorinii), apex rounded; ovary subsessile to long-stipitate. |
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Seeds | papillate, not winged. |
papillate, not winged. |
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Gentianopsis detonsa |
Gentianopsis virgata |
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Distribution |
North America; Eurasia
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North America
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Discussion | Subspecies 4 (4 in the flora). References to Gentianopsis detonsa in the Rocky Mountains from Montana south to New Mexico have been based on circumscriptions of the species that included G. thermalis. Specimens formerly so identified from Illinois, Indiana, and Ontario south of the James Bay region are G. virgata subsp. virgata. Those from Minnesota are G. virgata subsp. macounii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 14. | FNA vol. 14. | ||||||||||||||||||||
Parent taxa | Gentianaceae > Gentianopsis | Gentianaceae > Gentianopsis | ||||||||||||||||||||
Sibling taxa | ||||||||||||||||||||||
Subordinate taxa | ||||||||||||||||||||||
Synonyms | Gentiana detonsa, Gentianella detonsa | Anthopogon virgatus | ||||||||||||||||||||
Name authority | (Rottbøll) Ma: Acta Phytotax. Sin. 1: 15. (1951) | (Rafinesque) Holub: Folia Geobot. Phytotax. 2: 120. (1967) | ||||||||||||||||||||
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