Glandularia aristigera (S. Moore) Tronc.

aristigera: bearing beards, bearded

Perennial trailing herb, 10-80 cm tall, widely cultivated as a garden ornamental and occurring as a naturalised escape.Stems decumbent, sometimes rooting at the nodes, 4-angled, sparely hairy, often woody at the base. Leaves more or less ovate-tiangular in outline, deeply 2-3-pinnatisect; ultimate segments linear, up to 1 cm long, more or less hairy on both surfaces. Inflorescence in single terminal spikes c. 2 cm long, elongating up to 10 in fruit. Bracts green, ovate-lanceolate, half as long as the calyx. Calyx 7-9.5 mm long, tubular, densely whitish appressed hairy. Corolla mauve, lilac, purple, deep pink, purple-red or rarely white.; tube 10-11 mm long, exserted for 3-5 mm, hairy inside the throat. Lobes up to 4 × 4 mm, broadly obcordate, emarginate.

Native in South America.

Verbena aristigera (syns. Glandularia aristigera and Verbena tenuisecta), variously called the moss verbena, desert verbena, fine leafed verbena, wild verbena, tuber vervain, South American mock vervain, Mayne's curse and Mayne's pest, is a species of flowering plant in the family Verbenaceae. It is native to Bolivia, southern Brazil, northern Argentina, Paraguay and Uruguay. It has been widely introduced to the rest of the world's drier tropics and subtropics, including California, Guatemala, Honduras, Nicaragua, Venezuela, Greece, Nigeria, eastern and southern Africa, India, and all of Australia except Tasmania.