Austrostipa verticillata –

Scientific names: Austrostipa verticillata

Common names:

Plant family: POACEAE

Species description: Vigorous grass with branching, feathery flower heads to 1 m. Habit. Perennial. Rhizomes present, short. Culms erect, 50–100 cm high, woody. Mid-culm nodes glabrous. Lateral branches sparsely branched. Leaves cauline. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane, 2–8 mm long, membranous, truncate. Leaf-blades 1–3 mm wide. Inflorescence. Inflorescence compound, an open panicle or a congested or contracted panicle, exserted. Panicle lanceolate, 15–60 cm long. Primary panicle branches whorled at most nodes, 1–5 cm long. Spikelets solitary. Female fertile spikelets pedicelled. Fertile spikelets. Spikelets comprising 1 fertile florets, without rachilla extension, of 1 fertile floret with or without additional sterile florets, elliptic, terete, 3 mm long, breaking up at maturity. Floret callus brief. Glumes. Glumes similar, reaching apex of florets, thinner than fertile lemma. Lower glume lanceolate, 3–5 mm long, 0.8 length of upper glume, 3 -nerved, membranous, without keels, acute or acuminate. Upper glume lanceolate, 3–5 mm long, 1 length of adjacent fertile lemma, 3 -nerved, membranous, without keels, acute or acuminate. Florets. Fertile lemma elliptic, 3 mm long, coriaceous, without keel, 5 -nerved. Lemma surface indumented, pubescent, margins convolute, entire, awned, 1 -awned, geniculate, 33–53 mm long overall, with a straight or slightly twisted column or with twisted column. Column 7–30 mm long. Palea 0.5 length of lemma, 2 -nerved, without keels. Lodicules present. Anthers 3. Grain with adherent pericarp.

Associates species: Eucalyptus blakelyi, E. melliodora.

Soils: Grey sandy clay on Quaternary alluvium.

Habitat: River flat between undulating hills; woodland; exotic understorey. Widespread.

Cultivation: Propagation from seed. Hardy in most situations. Frost hardy plants.

Landforms planted: