Deyeuxia inaequalis

Deyeuxia inaequalis Vickery. Contr. New South Wales Natl. Herb. 1: 49 (1940).

Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Poeae.

Type of Basionym or Protologue Information: Australia, Arnolds: Carne (K holo).

Key references (books and floras): [1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (158), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australia, [2002] J.Wheeler, N.Marchant & M.Lewington, Flora of the South West (410), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2 (197).

Illustrations: [1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (157, Pl. 47).

Habit. Annual or perennial. Culms erect, stature slender to delicate, 75 cm tall, 3–4 -noded. Lateral branches simple. Leaves mostly basal. Leaf-sheaths scaberulous, glabrous on surface. Ligule an eciliate membrane, 3–5 mm long, membranous, lacerate, truncate. Leaf-blades linear, 5–12 cm long, 1–5 mm wide.

Inflorescence. Inflorescence solid, a panicle. Panicle linear or oblong, dense, 1–6 cm long.

Spikelets. Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile floret(s), without rachilla extension or with a barren rachilla extension, lanceolate, laterally compressed, 5–6 mm long.

Glumes. Glumes similar, thinner than fertile lemma. Lower glume lanceolate, membranous, keeled, 1-keeled, 1 -nerved. Upper glume lanceolate, membranous, keeled, 1-keeled, 1 -nerved.

Florets. Fertile lemma 2–2.5 mm long, without keel, 5 -nerved. Lemma apex dentate, awned, 1 -awned. Median (principal) awn dorsal, 3.5–4.5 mm long overall, with a straight or slightly twisted column. Palea apex dentate. Lodicules present. Anthers 3.

Continental Distribution: Australasia.

Australian Distribution: Western Australia.

Western Australia: Warren, Eyre.

Notes. Endemic.


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith