Bottlebrush Bulrush

Description

Small tufted annual-sedge to 5 cm high. Stems slender, striate,-leaf blades flat or plano-convex, striate, to 1 mm wide, as long as or longer than the inflorescence,-bract leaf-like but broad below, usually spreading, to 2 cm long.-Spikelets 1 or few, bristly, broad, to 5 mm long, 20-30-flowers,-glumes to-3.2 mm long, green, with the broad-ovate lower part often reddish-tinged, terminating in a spreading attenuate portion at least as long as the basal part. Flowering between October and November.-Isolepis hystrix-is diagnosed by the mucronate glumes, trifid styles and minutely papillose nutlets.