Perennial shrub or dwarf shrub, 0.1-1.5 m high; branched from base; branches erect, terete, leaf scars not prominent. Leaves alternate, subopposite or verticillate, linear-oblong, acute, rarely obtuse, usually flat, first densely hairy, glabrescent. Flowers in sessile, terminal or axillary clusters. Hypanthium densely silky outside; tube inflated below; sepals ovate, acute. Petaloid floral scales 8, linear, half as long as sepals. Anthers rounded at both ends. Ovary compressed, pubescent. Style as long as hypanthium tube. Stigma capitate. Flowering time Aug.-Apr.
Dwarf shrub, up to 350 mm high; multi-stemmed. Leaves appressed along stem; blade linear 5-10 mm long, apex acute, densely hairy. Flowers: in sessile terminal or axillary clusters when overtopped by young branchlets; petals 8, fleshy; calyx with tube 3-6 mm long, white or pale yellow; Sep.-Mar.
Shrublet to 30 cm. Leaves alternate to verticillate, linear-oblong, hairy becoming subglabrous. Flowers 3-6 at branch tips, surrounded by a whorl of leaves, pale blue and white, hypanthium silky, petaloid floral scales 8, linear.
Undershrub, up to 300 mm tall. Leaves linear-oblong, acute, densely hairy. Flowers in sessile terminal or axillary clusters. Calyx hairy. Petals 8, fleshy. Perfect anthers 8. Flowers white or pale yellow.