Andreae, H.K.C., came to South Africa from Germany as an assistant to Dr Marloth, and collected Restionaceae mainly in the more arid inland mountains. Two restioid species were named after him by Neville Pillans.
Vegetative parts: plants tufted, 0.3-1 m tall, basal diameter 0.05-0.1 m, crown diameter 0.1-0.3 m, compact, without spreading rhizomes or stolons. Fertile culms branching, smooth or finely rugulose, olivaceous, 0.3-1 m tall, diameter at base 0.6-1.2 mm, diameter at apex 0.3-0.8 mm. Sheaths closely convoluted, 7-12 mm long, pale brown, and paler towards the tips, apical margins narrowly membranous or broadly membranous, hyaline shoulders absent, apex, excluding the membranous lobes, acute or rounded. Sheath-mucro penicellate, straight and erect, 1-4 mm long, upper half of sheath fading. Males: male inflorescence with 2-5 spikelets or 6-10 spikelets, racemose or paniculate, 15-70 mm long, 6-18 mm wide. Male inflorescence spathes persistent, shorter than spikelets, cartilaginous. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, oblong, apex rounded or acute, 7-12 mm, 5-6 mm, with 4-10 flowers, pedicels absent ie spikelets sessile or shorter than the spikelets, terete or angular. Male bracts taller than flowers, 3-4.5 mm long, ovate, acuminate, cartilaginous, bract upper margin like body of bract, bract awn minute or absent, numerous short bracts, much shorter than the spikelet. Male flower 1.7-2.5 mm long. Male tepals sepals and petals the same rigidity, chartaceous, linear or oblong, inner tepals shorter than outer tepals or inner and outer tepals the same length. Male outer lateral tepals conduplicate, keel sparsely villous. Anthers 1.4-2 mm long, exserted from the flowers. Pistillode present. Females: female inflorescence paniculate or racemose, 8-70 mm long, 3-10 mm wide, with 2-5 spikelets or 6-10 spikelets. Female spathes shorter than the spikelets, persistent, coriaceous. Female spikelet sessile or pedicel simple, oblong or elliptical, apex acute, 10-15 mm long, with 5-8 flowers, with 0 sterile bracts. Female bracts taller than flowers, 4-7 mm long, oblong or ovate, acuminate, cartilaginous, apical margin like rest of bract, same as body of bract, awn minute or absent. Female flower 3-4.3 mm long, without a fleshy pedicel. Female tepals chartaceous, keels of lateral sepals sparsely villous, at least as tall as nut, wrapped around it and obscuring the surface, midrib flush with the tepal body, apices rounded, inner and outer whorls the same length. Female outer lateral tepals conduplicate, 2.5-4.2 mm long. Female odd outer tepal obovate, 2-3.8 mm long. Female inner tepals obovate, 3-3.7 mm long. Staminodes present. Styles feathery, white or pink, 3. Style bases seated on a stylopodium. Ovary with 1 locule, indehiscent. Fruit: indehiscent fruits with a softer ovary wall. Perianth presence on fruits persistent, papery to leathery, not winged. Nut apex smooth, without a distinct cap, wall smooth, 2-2.5 mm long, 1-1.5 mm diam., shape in side view elliptical, shape in top view round in cross section, brown. Elaiosome absent.