Rhynchospora fernaldii Gale

Plants perennial, cespitose, 15–50 cm; rhizomes absent. Culms erect or ascending, slender, leafy proximal to middle, somewhat stiff. Leaves overtopped by culm; blades ascending, ± filiform, proximally flat or slightly concave, to 1 mm wide, apex narrowing, trigonous, abruptly blunt. Inflorescences: spikelet clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or even globose; primary leafy bract setaceous, exceeding clusters. Spikelets red brown, ovoid, 2–2.5(–4) mm, apex acute; fertile scales broadly ovate, 1.5–1.9(–2) mm, apex acute to acuminate, midrib excurrent as awn to 0.5 mm. Flowers: bristles 6, some reaching to apex of fruit body. Fruits 2–3 per spikelet, 1–1.2(–1.4) mm; body dull dark brown with paler brown center, lenticular, broadly obovoid to broadly ellipsoid, 1 × 0.8 mm, margins narrow, flowing to tubercle; tubercle nearly equilaterally triangular, 0.2–0.3 mm.

Ala., Fla., Ga., Miss.

Fruiting summer–fall.

Sands and peats of low clearings in flatwoods, savannas, and bog edges; 0–100m.

Rhynchospora fascicularis (Michaux) Vahl var. fernaldii (Gale) Kükenthal

Rhynchospora fernaldii là loài thực vật có hoa trong họ Cói. Loài này được Gale miêu tả khoa học đầu tiên năm 1944.