Sieber, F.W., commercial herbarium specimen collector, who visited the Cape in 1824, where he made a collection.
WCM Protologue Reference:
Kunth, Enum. Pl. 3: 287 (1841)
Vegetative parts: plants clumped or tufted or tangled, 0.2–1 m tall, basal diameter 0.05–1 m, crown diameter 0.3–1 m, compact, without spreading rhizomes or stolons or with stolons. Fertile culms branching, round (not compressed), solid or with a small central cavity, smooth or finely warty (at high magnification surface may look slightly patterned, uneven, with very flattened papillae), green, 0.2–1 m tall, diameter at base 0.7–2 mm, diameter at apex 0.3–1.1 mm. Branch axil indumentum absent. Clusters of sterile branches at the nodes of the fertile branches absent. Sheaths persistent, with no abscission line, closely convoluted, 6–33 mm long, margins entire, orange- to reddish-brown with very fine tan speckles, apical margins coriaceous, like the rest of the body or narrowly membranous, hyaline shoulders absent, apex, excluding the membranous lobes, acute. Sheath-mucro penicellate or hair-like, straight and erect, 1–5 mm long, some forms with a somewhat loosely convoluted, long sheath. Males: male inflorescence with 2–5 spikelets or 6–10 spikelets or 11–20 spikelets or 21–50 spikelets, racemose or paniculate or globose (rarely globose), 15–75 mm long, 3–12 mm wide. Male inflorescence spathes persistent, shorter than spikelets, cartilaginous. Male spathellae inconspicuous or absent. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, oblong or elliptical, at least some curved, apex acute or undifferentiated, 4.5–12 mm, 0.9–1.9 mm, with 6–19 flowers, pedicels absent ie spikelets sessile or shorter than the spikelets or as long as the spikelets, flattened. Male bracts taller than flowers, 1.7–4 mm long, elliptical or ovate or obovate, rounded or obtuse, chartaceous or cartilaginous, bract upper margin membranous, thinner texture than the body, bract awn less than half as long as the bract body. Male flower 1–3.1 mm long. Male tepals sepals and petals the same rigidity or sepals more rigid than petals, cartilaginous, petals chartaceous, linear or elliptical or ovate, inner tepals shorter than outer tepals or inner and outer tepals the same length. Male outer lateral tepals conduplicate, keel sparsely villous. Anthers 0.9–1.2 mm long, exserted from the flowers. Females: female inflorescence interrupted or linear, 6–35 mm long, 2–12 mm wide, with 1 spikelet or 2–5 spikelets. Female spathes shorter than the spikelets or as long as the spikelets, persistent, coriaceous or cartilaginous. Female spikelet sessile or pedicel simple, elliptical or ovate or obovate, apex rounded or obtuse or acute, 6–20 mm long, with 4–15 flowers, with 0–1 sterile bracts. Female bracts taller than flowers, erect, 4.5–10.5 mm long, oblong or ovate or obovate, rounded or obtuse, coriaceous or cartilaginous, apical margin membranous, same as body of bract, awn less than half as long as the bract body or between half and as long as the bract body. Female flower 3.5–5.8 mm long, without a fleshy pedicel, six tepals. Female tepals coriaceous or chartaceous or cartilaginous, keels of lateral sepals sparsely villous or keels of lateral sepals densely villous, midrib raised, apices acute, inner and outer whorls the same length or inner whorl shorter than outer. Female outer lateral tepals conduplicate, 3.5–5.8 mm long. Female odd outer tepal ovate, 3.5–5.8 mm long. Female inner tepals ovate, 3–5.6 mm long. Staminodes absent. Styles feathery, white, 2. Style bases fused to form a pillar. Ovary with 2 locules or 1 locule, dehiscent. Fruit: seed (1.76–)2.1(–2.4) mm long, (1.16–)1.46(–1.68) mm in diameter, shape in side view elliptical, shape in diameter round in cross section, translucent or white, colliculate or striate (little bumps arranged longitudinally in 'stripes).