Carex allanii Hamlin

Rhizomatous, forming matted patches. Rhizomes up to 0.5 mm. diam., long-creeping. Culms distant on the rhizome, up to 7 cm. long, c. 0.2 mm. diam., terete, grooved, smooth; basal sheaths red-brown. Lvs 2–4, = or slightly < culms, c. 0.2 mm. wide, concavo-convex to plano-convex above, margins slightly scabrid towards the subacute tip; lf-sheaths red-brown, striated. Infl. a solitary spike of tightly clustered fls. Female fls 1–2; male fls in a spikelet 3.5–4 mm. long. Lowermost female glume bractiform, upper female glume 3–4 mm. long, acute, red-brown, midrib green, produced to a scabrid mucro c. 0.5 mm. long. Utricles 3–3.5 × 1 mm., subtrigonous, ovoid, nerveless except for two lateral nerves, contracted to a beak 1mm. long with scabrid margins and oblique orifice. Stigmas 3. Rhachilla, enclosed within utricle, 2 mm. long, flattened, margins scabrid. Nut < 2 mm. long, obovoid, trigonous.