Erysimum repandum |
Erysimum pallasii |
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repand wallflower, spreading wallflower |
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Habit | Plants annual. | |
Stems | (0.4)1.5–4.5(7) dm. |
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Basal leaves | often withered by fruiting; middle cauline leaves linear, narrowly oblanceolate, elliptic, or oblong; (1)2–8(11) cm × (2)5–12(17) mm; margins sinuate, dentate, or repand, petiolate. |
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Cauline leaves | upper entire or denticulate, sessile. |
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Inflorescences | fruiting pedicels divaricate; stout, 2–4(6) mm; width ? fruit. |
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Flowers | sepals oblong, 4–6 mm; lateral pair not saccate; petals oblanceolate to spatulate, 6–8 × 1.5–2 mm, yellow; claws 3–6 mm; petal tips rounded; median filaments 4–6 mm; ovules (40)50–80(90) per ovary; styles stout, 1–4 mm, sparsely pubescent; stigmas slightly 2-lobed. |
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Fruits | 4-angled; somewhat torulose; (2)3–8(10) cm × 1.5–2 mm; valves with distinct midveins, pubescent outside with 2(3)-rayed trichomes, glabrous or rarely sparsely pubescent inside. |
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Seeds | oblong, 1.1–1.5 × 0.6–0.7 mm; wingless or rarely distally winged. |
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Trichomes | 2(3)-rayed. |
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2n | =16. |
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Erysimum repandum |
Erysimum pallasii |
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Distribution | ||
Discussion | Roadsides, disturbed areas, pastures, fields, barren hillsides. Flowering Apr–Jun. 0–2600 m. BR, BW, Casc, Col, ECas, Lava, Owy, Sisk, WV. CA, ID, NV, WA; scattered throughout southern Canada and US; Africa, Asia, Europe. Exotic. |
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Source | Flora of Oregon, volume 2, page 486 Ihsan Al-Shehbaz |
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Sibling taxa | ||
Web links |
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