Tremandreae
A small natural order of usually Heath-like, glabrous or glandular-hairy, extratropical Australian shrubs. Flowers usually red or purple, regular, solitary, on axillary pedicels; sepals four or five, very rarely three, free, valvate in bud; petals as many, hypogynous, spreading, induplicate-valvate in bud; stamens twice as many, hypogynous, free; filaments short; anthers two or four-celled, opening in a single, terminal pore; torus small, or rarely expanded into a disk between the petals and stamens. Capsule usually flattened, two-celled, opening loculicidally at the edges. Leaves small, alternate, opposite, or whorled, rarely larger and stellate-tomentose. The order contains three genera--Platytheca, Tetratheca, and Tremandra--and about twenty-one species.