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 (Large robust tufts), 0.6–1 m tall, compact, without spreading rhizomes or stolons. Fertile culms unbranched, round (not compressed) (sometimes compressed after pressing), solid or with a small central cavity, smooth, olivaceous, 0.6–1 m tall, diameter at base 2–2.5 mm, diameter at apex 1–1.5 mm. Clusters of sterile branches at the nodes of the fertile branches absent. Sheaths more than 1 per culm, dropping off, with an abscission line present, loosely convoluted, 20–40 mm long, margins entire, pale brown, upper 1/3 in colour and texture similar to the lower 2/3, apical margins coriaceous, like the rest of the body, hyaline shoulders absent, apex, excluding the membranous lobes, obtuse or rounded. Sheath-mucro penicellate, straight and erect, 1.5–4 mm long, Sheaths prominent prior to dropping. Males: male inflorescence with indefinite spikelets, Paniculate, 40–100 mm long, 15–25 mm wide. Male inflorescence spathes caducous (spathes at the top of inflorescence remain longer than other spathes), taller than spikelets, cartilaginous. Male spathellae inconspicuous or absent. Male flowers not aggregated into spikelets. Male spikelets pedicels shorter than the spikelets, terete or angular. Male bracts taller than flowers, 4–7 mm long (reduced and lacerated), linear, acuminate, margins deeply lacerated or toothed, hyaline or membranous, bract upper margin membranous, thinner texture than the body, bract awn minute or absent, Male bracts pale, membranous and soon lacerated. Male flower 3–4 mm long. Male tepals sepals and petals the same rigidity, chartaceous, oblong or ovate, inner tepals longer than outer tepals. Male outer lateral tepals as other tepals, glabrous. Anthers 1.5–2.25 mm long, included in the flowers. Pistillode present. Females: female inflorescence linear, 30–70 mm long, 15–20 mm wide, with 6–10 spikelets. Female spathes longer than the spikelets, obscuring spikelet, persistent, cartilaginous. Female spathellae inconspicuous or absent. Female spikelet pedicel simple or pedicel sparsely branching, oblong or ovate or undifferentiated, apex undifferentiated, 5–10 mm long, with 1–4 flowers, with 0 sterile bracts. Female bracts as tall as flowers or taller than flowers, erect, 7–10 mm long, linear (reduced and lacerated), acuminate, chartaceous or membranous, apical margin membranous, paler than body of bract, margins entire, awn minute or absent. Female flower 4.5–5.5 mm long, without a fleshy pedicel, six tepals. Female tepals coriaceous or cartilaginous, glabrous and smooth, midrib flush with the tepal body, margins entire, apices acute or acuminate, inner and outer whorls the same length. Female outer lateral tepals like other tepals, hidden by bracts, or bracts are shorter than flowers, 4.5–6 mm long. Female odd outer tepal ovate, 4.5–6 mm long. Female inner tepals ovate (can be distinctly cup shaped, bases thickened), 4.5–5 mm long. Staminodes present. Styles feathery, 3. Style bases free. Ovary with 3 locules, dehiscent (seed 2–2.5mm long x 1.25–1.5mm wide and with a distinct rim or collar at the base,which may be a dried elaiosome). Fruit: seed (1.96–)2.24(–2.48) mm long, (1.08–)1.34(–1.56) mm in diameter, shape in side view elliptical, shape in diameter round in cross section, brown.