Shy Wallflower (Erysimum inconspicuum)
Description
Biennials or perennials; (short-lived, caudex thickened, usually simple, rarely branched). Trichomes of leaves 2- or 3-rayed. Stems erect, unbranched or branched distally, 1.5-7 dm. Basal leaves: blade linear to linear-oblanceolate, 1.5-6(-8) cm - 2-8 mm, base attenuate, margins entire or dentate, apex acute. Cauline leaves (distal) sessile; blade margins entire or denticulate. Racemes elongated or not in fruit. Fruiting pedicels divaricate-ascending to ascending, stout, slightly narrower than fruit, 4-9(-15) mm. Flowers: sepals oblong to linear-oblong, 4-6 mm, lateral pair slightly saccate basally; petals yellow, oblanceolate, 6-9 (-11) - 1-2 mm, claw 5-7 mm, apex rounded; median filaments 5-7 mm; anthers narrowly oblong to linear, 1-2 mm. Fruits ascending to divaricate-ascending, (not appressed to rachis), narrowly linear, straight, not torulose, 3-5.8(-7) cm - 1-1.5(-1.8) mm, slightly 4-angled or terete, not striped; valves with somewhat prominent midvein, pubescent outside, trichomes 2-4-rayed, glabrous inside; ovules 36-66 per ovary; style cylindrical, stout, 0.7-3 mm, moderately to sparsely pubescent; stigma strongly 2-lobed, lobes as long as wide. Seeds ovoid, 1.2-1.7 - 0.8-1 mm; not winged or wing apiculate. 2N = 81.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Brassicales
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Family: Brassicaceae
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Genus: Erysimum
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