Oplismenus imbecillis—Creeping Beard Grass—POACEAE.

Oplismenus imbecillis

Link to Images on Flickr.

Habitat—Grows in shady forest, including rainforest.

Distribution—Victoria, New South Wales, Queensland and Northern Territory.

Description—Weak trailing perennial grass to 0.3 m high.

Local occurrences

Australis Resort, Barrington/Gloucester Tops, Bennett Head, Black Head, Black Head Flora Park, Booti Hill, Burgess Beach, Burgess Road, Cape Hawke, Charlotte Head, Copeland, Crowdy Bay National Park, Darawank Nature Reserve and Wetland, Diamond Beach, Diamond Beach LRF, Dixon Property, Elizabeth Beach, Forster Cemetery, Golden Ponds Reserve, Karloo Street Reserve, Knappinghat Nature Reserve, Ohmas Bay, One Mile Beach, Reservoir Hill Reserve, Sea Acres National Park, Second Head, Seven Mile Beach and Green Point, Stephen Street Reserve, Talawahl Nature Reserve, The Sanctuary, Tiona, Tuncurry Flora Park, Waitui Falls, Wallamba River Area, Wallingat National Park and Zamia Place Reserve.

Leaves.—Ligule c. 3 mm long, membranous at the base, dividing into cilia; blade to 7 mm wide, with fine hairs, midrib narrow, whitish on the lower surface, 10 to 15 fine nerves either side of it.

Oplismenus imbecillis
Oplismenus imbecillis

Inflorescence—Panicle with racemes rarely > 1.5 cm long, the main axis usually glabrous except at the nodes, the rachis of the racemes often with long fine hairs near the base of the spikelets. Spikelets 2 to 3 mm long, scarcely compressed. Lower glume shorter than the spikelet, lower 3—nerved, terminating in a slender awn up to 2.5 times as long as the spikelet; upper equal in length, 5 to 7-nerved, obtuse. Lower lemma the length of the spikelet, 7—nerved, embracing the fertile floret; palea shorter than the lemma, or reduced or absent. Upper lemma c. 2 mm long, lanceolate.

Flowering.—Most of the year.

Ripe.—Most of the year.