Boechera polyantha (Greene) Windham & Al-Shehbaz (Q3799)
Boechera polyantha is a taxon with the rank species within the genus Boechera
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Boechera polyantha (Greene) Windham & Al-Shehbaz
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Boechera polyantha is a taxon with the rank species within the genus Boechera
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Statements
taxon/id/Boechera polyantha (Greene) Windham & Al-Shehbaz
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Boechera polyantha (Greene) Windham & Al-Shehbaz
Boechera polyantha
(Greene) Windham & Al-Shehbaz
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-BC
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University of British Columbia Herbarium (UBC), Vancouver, BC. Specimen. http://www.beatymuseum.ubc.ca/herbarium/index.html
US-ID
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US-MT
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US-WA
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900-2500 m
900 meter
2,500 meter
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Stems usually 1 per caudex branch, arising from center of rosette near ground surface, 2.5–9 dm, densely pubescent proximally, trichomes short-stalked, 2–6-rayed, 0.1–0.7 mm, similarly pubescent distally.
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Basal leaves: blade oblanceolate, 1.5–7 mm wide, margins entire or shallowly dentate, ciliate at petiole base, trichomes to 0.9 mm, surfaces densely pubescent, trichomes short-stalked, 5–10-rayed, 0.1–0.25 mm.
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Cauline leaves: 16–42, concealing stem proximally;
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blade auricles 0.5–1.5 mm, surfaces of distalmost leaves pubescent.
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Fruiting pedicels reflexed, abruptly recurved at base, otherwise straight, 7–13 mm, pubescent, trichomes appressed, branched.
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Flowers descending at anthesis;
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sepals pubescent;
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petals white, 6–9 × 1–2.5 mm, sparsely pubescent abaxially;
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pollen ellipsoid.
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Fruits strongly reflexed, usually appressed to rachis, sometimes somewhat secund, straight, edges parallel, 3.5–7.2 cm × 1.2–1.5 mm;
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valves densely pubescent;
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ovules 74–110 per ovary;
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styles 0.05–0.2 mm.
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Seeds uniseriate, 0.9–1.2 × 0.7–1 mm;
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wing continuous, 0.05–0.1 mm wide.
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pubescent
densely; proximally
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