Erysimum (wallflowers) is a genus that includes about 180 species, both popular garden plants and many wild forms. The genus Cheiranthus is sometimes included herein whole or in part. Erysimum has recently adscribed to a monogeneric cruciferous tribe, Erysimeae. This tribe is characterized by sessile, stellate and/or malpighiaceous trichomes, yellow to orange flowers and multiseeded siliques.
Wallflowers are small, annual, short-lived perennial h...
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Erysimum (wallflowers) is a genus that includes about 180 species, both popular garden plants and many wild forms. The genus Cheiranthus is sometimes included herein whole or in part. Erysimum has recently adscribed to a monogeneric cruciferous tribe, Erysimeae. This tribe is characterized by sessile, stellate and/or malpighiaceous trichomes, yellow to orange flowers and multiseeded siliques.
Wallflowers are small, annual, short-lived perennial herbs or sub-shrubs, reaching 10–130 cm tall. Most species have stems erect, somewhat winged, canescent with an indumentum of 2-fid hairs, usually 25 ± 53 cm x 2–3 mm in size, and t-shaped trichomes. Leaves narrow and sessile. Lower leaves linear to oblanceolate pinnatifid with backwardly directed lobes, acute, 50–80 mm x 0.5–3 mm. Stem leaves linear, entire; all canescent with 2-fid hairs; 21–43 mm x 1.5–2 mm. Inflorescence in raceme, with bright yellow to red or pink bilateral and hermaphodite, hypogynous and ebracteate flowers. Flowering...
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