Convovulus sepium L.
Family - Convolvulaceae
Stems - Twining, herbaceous, glabrous to hairy, from rhizomes, angled or terete.
Stem at a node.
Leaves - Alternate, petiolate. Blades to 10cm broad at base, to +10cm long, ovate to lanceolate, entire, acute to acuminate, glabrous to pubescent, cordate to sagittate at base with auricles either squarish or rounded.
Inflorescence - Single axillary pedunculate flowers. Peduncles to +10cm long, glabrous to puberulent.
Flowers - Corolla to +/-5cm long, funnelform, white, glabrous or sparse puberulent externally. Stamens 5, adnate at base of corolla tube, erect. Filaments to +2.5cm long, with glandular pubescence at base, whitish. Anthers to 5mm long. Ovary ovoid, glabrous, green, 2-locular. Style to 2cm long, glabrous, whitish. Stigmas 2, slightly compressed. Sepals 5, lance-ovate, to 1.5mm long, 5mm broad, acute to blunt at apex, mucronate and with small cilia at apex. Calyx surrounded by two large green bracts. Bracts to 2cm long, -2cm broad, broadly ovate, glabrous.
Bracts covering the calyx.
Flowering - May - September.
Habitat - Disturbed sites, waste ground, thickets, moist ground, roadsides, railroads.
Origin - Native to U.S.
Other info. - This species
is synonymous with Calystegia sepium R. Br.,
which is the more excepted name now. "Calystegia"
meaning "covered calyx".
Photographs taken at Shawnee Creek, Shannon County, MO., 9-28-03 and at Logan Creek, Ellington, MO., 8-1-04.