Botanical name: Erysimum virgatum    Family: Brassicaceae (Mustard family)
Synonyms: Erysimum hieraciifolium subsp. virgatum

European Wallflower is a biennial to perennial, very variable plant with branch-end clusters of numerous bright orange-yellow flowers, and with narrow entire or toothed stem leaves. Flowers are about 1 cm across; petals 8-10 mm, with long stalks and rounded blades; sepals finely hairy, 5-7 mm. A related species Himalayan Wallflower has larger flowers. Leaves are variable, narrow elliptic to inverted-lanceshaped. stalked, 4-6 cm or more long; stem leaves stalkless. Flowering stem is 1-2 ft. Fruit is 3-5 cm, with adpressed hairs. European Wallflower is found in Pakistan to West Himalayas, Nepal, SE Tibet, and Temperate Eurasia, at altitudes of 2400-4000 m. Flowersing: June-August.

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The flower labeled European Wallflower is ...