Micrargeria filiformis (Schum. & Thonn.) Hutchinson & Dalziel

filiformis: filiform, thread-like

Slender, erect, annual herb, 30-80 cm. Leaves opposite, filiform to linear, 1-3 cm long. Flowers usually opposite, usually white to pale pink, sometimes darker, short-lived, falling by the afternoon.

Occasional

Widespread in Africa from the Sudan south to Angola and Zimbabwe; also in W Africa