Nivenia corymbosa Baker

Shrubs 0.8-2.0(-3.5) m high, occasionally only up to 0.3 m. Stems erect to inclined, usually several from base, compressed, leafy stems 5-6 mm diam., old stems reaching up to 30(-50) mm diam. At base, older plants with lateral branches smaller than main axes, these sometimes like spur-shoots. Leaves narrowly lanceolate, 10-20 x ± 8 mm, acuminate, usually 8 to 12 per growth flush. Inflorescence a compound, flat-topped false panicle of up to 120 flowers, primary peduncle strongly compressed, secondary branches subtended by leafy bracts below, or dry brown scales above, pedicels of variable length, 1-6(-8) mm long or ± lacking and some flowers sessile; spathes enclosing 1 or rarely 2 flowers, leathery, subequal, brown above, herbaceous below, ± 4 mm long, inner floral bracts 6-7 mm long, dry and membranous, light to medium brown. Flowers salver-shaped, heterostylous, pale to deep blue, ± white at base of tepals and in tube; perianth tube 11-13 mm long, nearly cylindric, widening from 1.2 mm at base to ± 2 mm at mouth; tepals spreading, oblong, obtuse to subacute, 9-11 x 3.5-4.5 mm, inner slightly narrower than outer. Filaments either long, exserted ± 8.5 mm (thrum flower) or short, 0.5 mm long (pin flower), white; anthers ± 1.2 mm long after anthesis, yellow. Style 8-9 mm long (thrum flower) and included 1-2 mm below mouth of tube with branches 0.3 mm long, or ± 19 mm long (pin flower), exserted ± 9 mm, branches ± 0.8 mm long. Capsules obovoid, 3-4 mm long, 1 or 2 locules sometimes empty. Seeds 1(2) per locule, 2-3 x 1.8 mm.