Acocks, J.P.H., formerly spelt his surname "Acock", produced a detailed study of the vegetation types of South Africa (published 1953), in the process of which he collected numerous excellent herbarium specimens and many new species. His survey of the Bottelary Hills for a Masters resulted in the first documentation of several now very rare species found on seasonally waterlogged sands.
Vegetative parts: plants tufted, 0.6-1 m tall, basal diameter 0.1-0.2 m, crown diameter 0.3-0.4 m, with rhizomes. Rhizome spreading, unbranched or sparsely branched, culms evenly spaced, 2-3 mm in diam., culms 4-20 mm apart. Fertile culms unbranched, round (not compressed), solid or with a small central cavity, smooth or finely rugulose or finely warty, olivaceous, 0.5-0.8 m tall, diameter at base 1-2 mm, diameter at apex 0.6-1.2 mm. Branch axil indumentum absent. Clusters of sterile branches at the nodes of the fertile branches absent. Sheaths more than 1 per culm, persistent, with no abscission line, closely convoluted, 15-30 mm long, margins entire, light to dark brown with dark speckles, upper 1/3 in colour and texture similar to the lower 2/3, apical margins coriaceous, like the rest of the body or narrowly membranous, hyaline shoulders absent, apex, excluding the membranous lobes, acute or obtuse. Sheath-mucro penicellate or clavate, straight and erect, 1-5 mm long. Males: male inflorescence with 21-50 spikelets or 50-100 spikelets, paniculate, 25-120 mm long, 6-15 mm wide. Male inflorescence spathes caducous, taller than spikelets, cartilaginous, dropping early and seen on few specimens. Male spathellae inconspicuous or absent. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, undifferentiated, apex undifferentiated, 3-4 mm, 2-3.5 mm, with 4-10 flowers, pedicels shorter than the spikelets or as long as the spikelets or longer than the spikelets, terete or angular. Male bracts shorter than flowers, 1-1.5 mm long, ovate or orbicular, rounded or obtuse, margins entire, chartaceous or cartilaginous, bract upper margin like body of bract, bract awn minute or absent, dark brown scale at the base of each flower. Male flower 2-2.5 mm long. Male tepals sepals and petals the same rigidity, chartaceous or cartilaginous, oblong or elliptical or ovate (inner tepals are taller and oblong or elliptical while the outer ones tend to be more ovate in shape and are shorter), inner tepals longer than outer tepals. Male outer lateral tepals conduplicate, glabrous. Anthers 1-1.7 mm long, included in the flowers. Females: female inflorescence interrupted, 30-120 mm long, 10-15 mm wide, with 6-10 spikelets or 11-20 spikelets. Female spathes longer than the spikelets, not obscuring spikelet, persistent, cartilaginous. Female spathellae inconspicuous or absent. Female spikelet pedicel sparsely branching, orbicular or undifferentiated, apex undifferentiated, 5-6 mm long, with 2-5 flowers, with 0-4 sterile bracts. Female bracts shorter than flowers, erect, 2-3 mm long, oblong or orbicular, rounded or obtuse, cartilaginous, apical margin like rest of bract, same as body of bract, margins entire, awn minute or absent. Female flower 3-4 mm long, without a fleshy pedicel, six tepals. Female tepals bony, glabrous and smooth, midrib raised, margins entire, apices rounded or obtuse or acute, inner and outer whorls the same length. Female outer lateral tepals like other tepals, 2.5-3 mm long. Female odd outer tepal oblong, 2.5-3 mm long. Female inner tepals oblong or obovate, 2.5-3 mm long. Staminodes present. Styles feathery, white, 3. Style bases free. Ovary with 3 locules, dehiscent. Fruit: seed (2.4-)2.71(-3.28) mm long, (1.52-)2.06(-2.52) mm in diameter, shape in side view obovate, shape in diameter elliptical in cross section, brown; funicular elaiosome absent.