Primos, R., a relatively poorly known collector, who first collected this species.
WCM Protologue Reference:
(Pillans) H.P.Linder, S. African J. Bot. 77: 419 (2011)
Vegetative parts: plants tufted, 0.3-1.1 m tall, basal diameter 0.1-0.3 m, crown diameter 0.3-1 m, compact, without spreading rhizomes or stolons. Fertile culms unbranched, distinctly hollow, smooth or finely rugulose, green or olivaceous, 0.5-1 m tall, diameter at base 1-2 mm, diameter at apex 1-1.8 mm. Sheaths closely convoluted, 25-55 mm long, brown, eventually turning grey, apical margins coriaceous, like the rest of the body, hyaline shoulders absent, apex, excluding the membranous lobes, acute. Sheath-mucro absent or penicellate, straight and erect, 0-0.5 mm long, tightly convoluted, but the apical margins soon decaying. Males: male inflorescence with 11-20 spikelets or 21-50 spikelets, paniculate, 40-70 mm long, 15-25 mm wide. Male inflorescence spathes caducous, taller than spikelets, coriaceous, spathes as tall as the inflorescences and quite robust, but dropping as the flowers mature. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, orbicular, apex rounded, 4.5-6.5 mm, 5-6.5 mm, with 20-40 flowers, pedicels shorter than the spikelets or as long as the spikelets, terete or angular. Male bracts taller than flowers, 3-6 mm long, ovate, acuminate, chartaceous or cartilaginous, bract upper margin membranous, thinner texture than the body, bract awn minute or absent, acuminate apices gives the male spikelets a bristly appearance. Male flower 2-3 mm long. Male tepals sepals more rigid than petals, cartilaginous, petals chartaceous, oblong, inner and outer tepals the same length. Male outer lateral tepals conduplicate, glabrous. Anthers 1.3-2 mm long, exserted from the flowers. Pistillode absent. Females: female inflorescence globose or linear (Usually with the spikelets overlapping quite extensively, giving the inflorescence a congested appearance), 25-70 mm long, 10-30 mm wide, with 2-5 spikelets. Female spathes longer than the spikelets, not obscuring spikelet, persistent, coriaceous or cartilaginous. Female spathellae inconspicuous or absent. Female spikelet sessile, elliptical (often slightly curved out), apex acute, 15-30 mm long, with 1-3 flowers (this needs checking), with 5-7 sterile bracts. Female bracts taller than flowers, 10-20 mm long, ovate, acute or acuminate (not long-acuminate), bony, apical margin like rest of bract, same as body of bract, awn minute or absent. Female flower with a fleshy pedicel. Female tepals membranous (milky coloured), glabrous and smooth, smaller than nut and not obscuring the nut surface, midrib flush with the tepal body, apices truncate or rounded, inner and outer whorls the same length. Female outer lateral tepals like other tepals, 1-4 mm long. Female odd outer tepal oblong or square, 1-4 mm long. Female inner tepals linear or oblong, 1-4 mm long. Staminodes absent. Styles plumose, white, 2. Style bases free. Ovary with 1 locule, indehiscent. Fruit: indehiscent fruits with a hard woody ovary wall. Perianth presence on fruits persistent, membranous, shorter than nut. Nut apex smooth, without a distinct cap, wall smooth, 5.2-7.3 mm long, 2.4-3.5 mm diam., shape in side view oblong, shape in top view planoconvex in cross section, black, mode of seed release for nutted plants nut popped out of bracts. Elaiosome present, white, 1-2 mm long, less than half as long as nut.