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Thelypodiopsis vermicularis
(S.L. Welsh & Reveal) Rollins
No occurrences found
(redirected from:
Thelypodium sagittatum var. vermiculare
S.L. Welsh & Reveal)
Family:
Brassicaceae
Great Basin tumblemustard
[
Thelypodium sagittatum var. vermiculare
S.L. Welsh & Reveal]
Images
not available
FNA
Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Annuals or biennials;
(glaucous), glabrous throughout or sparsely pubescent basally.
Stems
(simple or, often, several from base), branched distally, 1.5-5(-6) dm.
Basal leaves
rosulate; petiole 0.5-2.3 cm; blade broadly oblanceolate, (1.8-)2-3.5(-4) cm × 10-15 mm, margins entire or remotely denticulate.
Cauline leaves
sessile; blade broadly ovate to oblong, (slightly smaller distally), base strongly auriculate to amplexicaul, margins entire.
Racemes
dense.
Fruiting pedicels
horizontal to divaricate-ascending, straight or upcurved, (slender), 4-8.5(-10) mm.
Flowers:
sepals ascending to spreading, purplish to greenish or white, 4.5-5.5 × 1.2-1.5 mm; petals white, spatulate, 9-11 × 3-4 mm, (margins not crisped), claw 4-6 mm; median filament pairs 4-6 mm; anthers linear, 3-4 mm; gynophore (stout), 0.2-1.5 mm.
Fruits
erect to ascending, straight or slightly recurved, (distinctly tortuous), torulose, 2-4 cm × 1.2-1.5 mm; ovules 30-42 per ovary; style cylindrical, 1-3 mm; stigma slightly 2-lobed.
Seeds
1.2-1.7 × 0.6-0.9 mm. Flowering Apr-Jun. Brush communities, shale formations, clay or silty flat, juniper woodlands; 1300-2200 m; Nev., Utah.
Thelypodiopsis vermicularis
is known in eastern Nevada from Elko and White counties.
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