Stackhousia monogyna

Glabrous (rarely hispid) perennial to 60 cm high, with 1–many, erect or ascending, often branched, stems arising from taproot. Leaves linear to narrowly obovate, 10–30(–50) mm long, 1–3(–8) mm wide, obtuse, acute or shortly mucronate at apex, not fleshy. Inflorescence a moderately dense to dense cylindric spike, sometimes branched; flowers solitary at nodes, each subtended by a bract and 2 bracteoles (bracteoles hyaline, often vestigial), bract usually arcuate, often curved downwards near base, but without a prominent saccate base, acute to acuminate, equal to nearly twice as long as calyx. Hypanthium 0.5–1 mm long; sepals 1–1.5 mm long; corolla cream or white, tube 4–7 mm long, lobes 2.5–4.5 mm long; gynoecium 3-partite. Mericarps usually 3, broad-obovoid to broad-ellipsoid, 2–2.5 mm long, acutely reticulate, the basal cavity shallow. Flowers Sep.–Feb.