Shrub or dwarf shrub, 0.3-2.0 m high, with tetragonal, glabrous or sparsely appressed-hairy branches. Leaves opposite, narrowly lanceolate to narrowly elliptic, acute. Flowers axillary, twice as long as leaves, white, cream-coloured, pink or sometimes yellow, scales linear, longer or shorter than perigonal hairs. Flowering time all year.
Shrub to over 2 m with tetragonal, glabrous or sparsely adpressed-hairy branches. Leaves opposite, narrowly lanceolate to narrowly elliptic, acute. Flowers axillary, twice as long as leaves, white, cream-coloured, pink or sometimes yellow, scales linear, longer or shorter than perigonal hairs.