Heliotropium L.
Stigmas almost sessile, with a terminal conical appendage. Flowers in compact coiled monochasia Heliotropium
Corolla white, c. 2 mm long. Leaves petiolate, ovate to elliptic, up to 40 mm long, 10–20 mm wide. Fruit splitting into 4 articles. Widespread. Weed of cultivation and waste places. Introd. from Europe. Fl. summer– autumn. Heliotrope Heliotropium europaeum
Corolla lilac with a yellow throat. Leaves tapering gradually towards the base and sessile, oblong-lanceolate, 2–8 cm long, mostly less than 10 mm wide. Fruit splitting into 2 articles. Widespread. Weed of cultivation and waste places. Introd. from S. America. Fl. spring–summer. Blue Heliotrope Heliotropium amplexicaule