Difference between revisions of "Descurainia nelsonii (Rydberg) Al-Shehbaz & Goodson (Q3691)"
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Latest revision as of 13:00, 24 June 2022
Descurainia nelsonii is a taxon with the rank species within the genus Descurainia
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Descurainia nelsonii (Rydberg) Al-Shehbaz & Goodson
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Descurainia nelsonii is a taxon with the rank species within the genus Descurainia
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Statements
taxon/id/Descurainia nelsonii (Rydberg) Al-Shehbaz & Goodson
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Descurainia nelsonii (Rydberg) Al-Shehbaz & Goodson
Descurainia nelsonii
(Rydberg) Al-Shehbaz & Goodson
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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Nelson's western tansy mustard (English)
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CA-BC
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FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1007&flora_id=1
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-BC
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US-CA
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US-ID
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US-MT
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US-NV
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US-OR
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US-WA
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US-WY
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800-3000 m
800 meter
3,000 meter
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sparsely to moderately pubescent, sometimes glabrous distally, not canescent, trichomes dendritic.
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Stems erect, usually branched basally or slightly distally, rarely unbranched, (0.7–) 0.9–3.2 (–4.5) dm.
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Basal leaves: petiole 0.5–1.5 cm;
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blade pinnate, ovate or oblong in outline, 0.8–2.5 cm, lateral lobe (2–5 pairs), margins dentate or entire.
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Cauline leaves sessile or shortly petiolate;
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blade smaller distally, distal lobes often narrower, sparsely to moderately pubescent.
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Fruiting pedicels divaricate-ascending (often at 20–45º angle), straight, (1.5–) 2.5–7 (–10) mm.
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Flowers: sepals ascending, yellowish, oblong, 0.7–1.2 mm, pubescent;
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petals narrowly oblanceolate, 0.8–1.2 × 0.2–0.4 mm;
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median filaments 1–1.5 mm;
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anthers 0.1–0.2 mm.
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Fruits erect or ascending, linear, not or slightly torulose, (0.4–) 5–8 (–10) × 0.7–1 mm;
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valves each with distinct midvein;
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ovules 6–12 per ovary;
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style 0.1–0.2 mm, glabrous.
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Seeds uniseriate, brown, oblong, 0.6–0.8 × 0.4–0.5 mm. 2n = 14.
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branched
usually; basally; basally; slightly distally; distally
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