Tradescantia ohiensis Raf. - Spiderwort
Family - Commelinaceae
Stems - To 1.5m tall, herbaceous, erect, glabrous, typically glaucous.
Leaves - Alternate, grasslike, glabrous, glaucous, to 30cm long, clasping stem.
Inflorescence- Terminal, umbellate cymes with +/- 20 flowers, one or two flowers opening at a time, subtended by foliaceous bracts.
Flowers - Corolla blue-purple, to 4cm broad. Petals 3. Stamens 6, filaments pilose with purple pubescence. The hairs of the stamens multicellular. Calyx glabrous or with some hairs at tip of sepals. Pedicels to +2.5cm long.
Flowering - May - July.
Habitat - Prairies, disturbed sites, waste ground, open woods, roadsides, railroads.
Origin - Native to U.S.
Other info. - This species is commonly mistaken for a grassy weed by beginners who are delighted to see it bloom. It is the most common species of the genus in Missouri.
Photographs taken in Gainesville, FL. 7-23-02, and at Busiek State Forest, MO., 6-16-05.