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2. Gentianopsis virgata (Rafinesque) Holub, Folia Geobot. Phytotax. 2: 120. 1967.
[E]
Slender fringed gentian, gentianopsis élancé
Anthopogon virgatus Rafinesque, Fl. Tellur. 3: 25. 1837 (as virgatum)
Herbs biennial or perhaps sometimes annuals, 0.2–5(–7) dm. Stems except those of smallest plants with branches or peduncles arising from nodes distinctly above base, infrequently from base (subsp. macounii). Leaves: 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. Peduncles 1–20 cm. Flowers 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. Seeds papillate, not winged.
Subspecies 3 (3 in the flora): North America.
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| 1 |
Calyx keels usually strongly papillate-scabridulous, occasionally minutely or obscurely so or smooth; corolla lobes with lateral fringes usually 2–6 mm |
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2a Gentianopsis virgata subsp. virgata |
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Calyx keels minutely granular-scabridulous near base or nearly smooth; corolla lobes with sparse lateral fringes to 2 mm or merely erose, dentate to serrate, or entire or nearly so. |
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(2) |
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| 2 (1) |
Corolla lobes deeply dentate or serrate toward apex, teeth mostly 1+ mm; ovary at flowering with slender gynophore ± as long as body; estuary of St. Lawrence River, Quebec |
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2b Gentianopsis virgata subsp. victorinii |
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Corolla lobes erose or shallowly dentate toward apex, teeth mostly less than 1 mm; ovary at flowering subsessile or with a thick gynophore much shorter than body; widely distributed in c, w North America, disjunct on Gaspé Peninsula, Quebec |
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2c Gentianopsis virgata subsp. macounii |
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Lower Taxa
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