Perennial or annual herbs; hairs multicellular with terminal cell papillate; roots primary. Leaves mostly basal, on a stock, villous in axils. Scapes usually numerous each bearing a single terminal head surrounded by an involucre of green bracts. Flowers bisexual, regular, each with several membranous hyaline bracts. Sepals 5, connate, usually densely hairy. Petals 5, connate. Stamens 5, opposite sepals, epipetalous; anthers connate forming a tube, 2-locular, dehiscing through longitudinal slits. Ovary superior, 1-locular; ovule solitary, attached basally on septum or ridge; style entire with hollow indusium enclosing ��bifid tip. Fruit a nut enclosed in persistent calyx. Seed without endosperm; testa membranous; embryo straight.
Herbs, shrubs or rarely scramblers, glabrous, viscid or variously hairy; roots usually primary, sometimes adventitious. Leaves mostly alternate, often with axillary tuft of hairs. Flowers bisexual, in dichasia, thyrses, racemes, umbels, spikes or heads, or solitary. Sepals 5, 3 reduced to rim or obsolete, free or connate. Corolla tubular but more deeply slit in 1 or 2 positions (i.e. fanlike or two-lipped), sometimes pouched. Petals 5, ��winged, often with auricles around stamens. Stamens 5, opposite sepals, epigynous or rarely apparently hypogynous; anthers free or connate, 2-locular, dehiscing through longitudinal slits. Ovary superior, half-inferior or inferior; locules 2 (usually incomplete), rarely 4 or apparently 1; placentas axile or basal; style entire with hollow pollen cup (indusium) enclosing ��bifid tip, rarely 2- or 3-branched. Fruit a drupe, inferior nut or capsule, rarely separating transversely into 1-seeded woody segments. Seeds with endosperm; testa membranous to thickened; embryo straight. source:
ABRS Flora of Australia Online