Esterhuysen, E.E. = the foremost collector from the Cape mountains, who made Restionaceae her speciality. She collected actively from 1930 to 1990, and contributed more to our knowledge of the Cape flora than any other collector. Her meticulous collections, assembled to reflect the distribution range and morphological variability of each species, are currently housed at the Bolus Herbarium.
WCM Protologue Reference:
Pillans, Trans. Roy. Soc. South Africa 30: 248 (1945)
Vegetative parts: plants tufted or tangled (Growthform generally erect but branches frequently tangled), 0.2–0.5 m tall, basal diameter 0.1–0.2 m, crown diameter 0.3–0.5 m, compact, without spreading rhizomes or stolons. Fertile culms branching or much branched, round (not compressed), solid or with a small central cavity, roughly warty, olivaceous, 0.15–0.4 m tall, diameter at base 0.6–1 mm, diameter at apex 0.2–0.5 mm. Sheaths more than 1 per culm, persistent, with no abscission line, closely convoluted, 5–14 mm long, reddish to dark brown, sometimes with tan speckles, apical margins broadly membranous, hyaline shoulders membranous margins continuing behind awn, apex, excluding the membranous lobes, acute. Sheath-mucro penicellate, straight and erect, 0.7–4 mm long. Males: male inflorescence with 2–5 spikelets or 6–10 spikelets or 11–20 spikelets, racemose, 7–70 mm long, 4–9 mm wide. Male inflorescence spathes persistent, shorter than spikelets, cartilaginous. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, elliptical, apex acute, 5–7 mm, 1.2–2 mm, with 8–12 flowers, pedicels absent ie spikelets sessile or shorter than the spikelets, terete or angular or flattened. Male bracts as tall as flowers or taller than flowers, 2.5–4 mm long, elliptical (quite broad), acute, cartilaginous, bract upper margin membranous, thinner texture than the body, bract awn less than half as long as the bract body. Male flower 2.5–3 mm long. Male tepals sepals more rigid than petals, chartaceous, petals chartaceous, oblong or elliptical, inner and outer tepals the same length. Male outer lateral tepals conduplicate, keel sparsely villous. Anthers 1–1.7 mm long, exserted from the flowers. Females: female inflorescence interrupted (Many culms have only one spikelet at their tip, a few have 2 or 3), 5–10 mm long, 1.5–5.5 mm wide, with 1 spikelet or 2–5 spikelets. Female spathes shorter than the spikelets, persistent, cartilaginous. Female spikelet sessile or pedicel simple, elliptical or undifferentiated, apex acute or undifferentiated, 5–10 mm long, with 3–11 flowers, with 0 sterile bracts. Female bracts as tall as flowers or taller than flowers, erect, 3–5.5 mm long, ovate, acute, cartilaginous (quite hard), apical margin like rest of bract, same as body of bract, margins entire, awn less than half as long as the bract body. Female flower 2.5–5 mm long, without a fleshy pedicel, six tepals. Female tepals cartilaginous, keels of lateral sepals densely villous, midrib raised, margins entire, apices acute, inner and outer whorls the same length. Female outer lateral tepals conduplicate, 2.2–5 mm long. Female odd outer tepal oblong or ovate, 2.2–5 mm long. Female inner tepals oblong or ovate, 2.2–5 mm long. Staminodes absent. Styles feathery, 2. Style bases fused to form a pillar (which is remarkably long and very visible in the spikelets). Ovary with 3 locules or 2 locules, dehiscent. Fruit: seed 1.52–1.9 mm long, 0.76–1.3 mm in diameter, shape in side view elliptical, shape in diameter round in cross section or triangular in cross section, grey, smooth (shiny).