Smelowskia porsildii (W. H. Drury & Rollins) Jurtsev (Q3769)
Smelowskia porsildii is a taxon with the rank species within the genus Smelowskia
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Smelowskia porsildii (W. H. Drury & Rollins) Jurtsev
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Smelowskia porsildii is a taxon with the rank species within the genus Smelowskia
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Statements
taxon/id/Smelowskia porsildii (W.H. Drury & Rollins) Jurtzev
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Smelowskia porsildii (W.H. Drury & Rollins) Jurtzev
Smelowskia porsildii
(W.H. Drury & Rollins) Jurtzev
FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
accepted
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CA-YT
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Porsild, A.E. 1974b. Materials for a flora of Central Yukon Territory. National Museums of Natural Sciences, Publications in Botany 4. 77 pp.
US-AK
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Plants sometimes canescent basally;
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Stems: several from base, unbranched, (0.3–) 0.5–1.4 (–2) dm, trichomes simple, 0.3–1 mm, mixed with smaller, dendritic ones, (sometimes simple ones absent).
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Basal leaves: petiole 0.7–3 (–4) cm, often ciliate, trichomes simple;
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blade usually linear to oblanceolate or spatulate, rarely obovate, (0.5–) 0.8–2.2 (–3.5) cm × 0.7–5 (–7) mm, margins usually entire, rarely apically 3 or 5-toothed or lobed, apex obtuse to rounded, (surfaces densely tomentose, grayish, trichomes mostly dendritic, mixed with fewer, simple ones, to 1 mm).
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Cauline leaves shortly petiolate;
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blade similar to basal, smaller distally, margins usually entire, rarely lobed.
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Fruiting pedicels divaricate to ascending, (forming 30–70˚ angle), proximalmost bracteate, 4–12 mm, pubescent, trichomes simple mixed with smaller, dendritic ones.
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Flowers: sepals 2.5–3.5 mm;
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petals white or creamy white, suborbicular to obovate, 4–6 × 2–3 (–4) mm, narrowed to claw, 1–2 (–3) mm, apex rounded;
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anthers oblong, 0.5–0.7 mm.
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Fruits divaricate to ascending, ellipsoid to oblong, subterete or slightly 4-angled, 6–10 × 1.5–2.5 mm, base and apex cuneate;
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valves each with prominent midvein;
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ovules 4–8 per ovary;
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style 0.1–0.5 mm.
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Seeds 1.5–2 × 0.9–1.2 mm. 2n = 12, 22, 24.
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usually linear
oblanceolate or spatulate
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ellipsoid
oblong subterete or slightly 4-angled
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ellipsoid
oblong subterete or slightly 4-angled
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