Hesperis matronalis L.
Family - Brassicaceae
Stems - To 1m tall, somewhat branching above, pubescent, herbaceous.
Leaves - Alternate, lanceolate, typically sessile, toothed(dentate) or rarely entire, pubescent above and below, to +/-12cm long, +4cm broad.
Inflorescence - Terminal racemes to +30cm tall.
Flowers - Corolla purple to blue purple,(other colors seen in cultivation), to 2cm broad. Petals 4, clawed, glabrous. Claw to -1cm long. Limb to +/-1cm long, 8mm broad, emarginate. Stamens 6, 4 closest to ovary longer than outer opposing 2, included. Stigma 2-lobed. Sepals 4, purple, erect and forming mock tube around petal claws, to 6mm long, 1.5mm broad.
Fruit - Cylindrical siliques to +10cm long.
Flowering - May - August.
Habitat - Disturbed sites, waste ground, thickets, open woods, roadsides, railroads. Also cultivated.
Origin - Native to Europe.
Other info. - This is one of the most showy members of the Brassicaceae. The flowers are typically much more blue-purple than appear in the top picture. The plant is quite common.
Photographs taken at the Kansas City Zoo, 5-8-00, and off Hwy 29, Guilford County, NC., 4-23-03.