Rottboellia coelorachis G.Forst. APNI* Description: Robust annual to 2 m high, glabrous.
Leaves with blade 1.5–4 cm wide; base auriculate, undulate.
Inflorescence of 3 or 4 racemes; racemes cylindrical and stiff, 8–15 cm long, 3–5 mm diam., arising from very slightly inflated leaf sheaths; spikelets sunk in pockets on rachis except at anthesis; glumes of lower spikelet equal, 6.5–7.5 mm long, rounded-obtuse to acute; keel margin minutely serrulate; glumes of upper spikelet both similar, 4.5–5.5 mm long; lemma of lower spikelet subequal to glumes, acute, with margin hyaline.
Flowering: summer.
Distribution and occurrence: Probably introduced to Lord Howe Island; native to Vanuatu and New Caledonia. On rocky platform just above high water. Jagged, weathered calcarenites.
NSW subdivisions: *LHI
Text by P.S. Green (1994)
Taxon concept: P.S. Green (1994)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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