Austrostipa stuposa (Hughes) S.W.L.Jacobs & J.Everett
Tall, erect, coarse, densely tufted perennial tussock with stout culms; branching extravaginal; cataphylls hairy. Leaf-sheath to 10 cm, with abundant long (0.5 mm) hairs from swollen bases, terminating in a tuft of long hairs to 2.5 mm. Ligule to 0.5 mm, conspicuously hair-fringed. Leaf-blade to 30 cm × 1 mm diam., loosely inrolled, stiff, harsh abaxially with dense erect or retrorse ± stiff long (0.5 mm) hairs from swollen bases in columns between ribs, adaxially with abundant short hairs or prickle-teeth; margins with long hairs or prickle-teeth. Collar curved, hair-fringed. Culm to 1 m, nodes and internodes densely retrorsely pilose. Panicle to 35 cm, violet or violet-suffused, narrow, subtended by hairs or hairy bracts; rachis scabrid, branches and pedicels short stiff hairy. Glumes unequal, 3-nerved, scabrid, produced into hyaline awn-like processes to 3 mm, < awn column; lower to 18 mm, upper to 15 mm. Lemma to 8 mm, fulvous, clothed in long white hairs, lobes minute or absent; coma to 3 mm; awn to 50 mm, 1- or weakly 2-geniculate, widely divergent, column twisted and hairy to 15 mm, less twisted for 8 mm, arista to 25 mm. Palea internerve hairs long, apex sparsely hairy. Callus to 2.5 mm, hairs to 3 mm. Lodicules 2, ligulate, to 2 mm. Anthers to 1.5 mm in cleistogamous flowers, to 3.5 mm in chasmogamous flowers, penicillate.
S.: Banks Peninsula (Pigeon Bay). In modified grassland and among short scrub to 200 m.
Naturalised from south-eastern Australia or Tasmania.
Flowering in spring is either chasmogamous or cleistogamous; cleistogamy occurs in both emerged or ensheathed inflorescences. In autumn a floriferous branch may develop at the uppermost culm node and emerge from the culm leaf-sheath; flowering there is cleistogamous.
Collected by W. R. Boyce on 17 February 1937, from Bowen's Valley, Port Hills [Christchurch] CHR 92947 (duplicate CANU 834); it has not been found there since.
