Plumbago L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 30

1. Plumbago L. 1

Shrubs or perennial herbs. Leaves alternate, simple. Inflorescence of (2-)3-bracteate, 1-flowered spikelets grouped into terminal spikes. Calyx tubular, 5-ribbed, scarious; limb deeply 5-dentate. Corolla with narrow tube and rotate limb. Stamens free. Style 1, with 5 stigma-lobes. Fruit circumscissile near base, dehiscing upwards into 5 valves.