Tetraselago

Tufted, woody, perennial herbs; stems erect or decumbent, simple to much branched, glandular-puberulous and with coarse hairs, leafy. Leaves alternate, fascicled, linear-lanceolate to suborbicular, sometimes narrowly oblanceolate or obovate, entire or denticulate, rarely serrate, glandular-punctate. Flowers axillary, bracteate, in corymbose inflorescences, terminal or sometimes lateral, in 1 species very congested. Bracts adnate to pedicel and at least half of calyx tube, rarely less. Calyx slightly bilabiate, 5-dentate. Corolla tubular, slightly bilabiate, 5-lobed, tube funnel-shaped; posterior lip exterior in bud; lobes spreading, glabrous outside, often with clavate hairs around mouth. Stamens 4, didynamous, exserted; anterior pair arising in throat, exceeding posterior pair which arises a little lower down, filaments of latter pair decurrent to base of tube; anthers synthecate, dorsifixed; staminodes 0. Nectary small, adnate to one side of ovary base. Ovary bilocular, oblong; ovules 2 per locule from centre of axis, funicles pulvinate, hollowed, 1 turned up, 1 down; stigma lingulate, flattened, exserted, with 2 marginal bands of stigmatic papillae. Fruit a septicidal capsule with a short loculicidal split at tip of each valve. Seeds amber-coloured, turning dull black, ornamented with +/- 8 irregularly sinuous longitudinal bands.