Divaricately branched shrub, 0.3-1.5 m high. Fl. red, Jan or Apr to Oct. Loam, clay loam, lateritic gravel or granite.
Beard’s Provinces: Eremaean Province, South-West Province.
IBRA Regions: Avon Wheatbelt, Coolgardie, Esperance Plains, Great Victoria Desert, Mallee, Murchison, Nullarbor, Yalgoo.
IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Central, Central band, Nullarbor Plain, Eastern Goldfield, Eastern Mallee, Eastern Murchison, Fitzgerald, Mardabilla, Shield, Southern Cross, Tallering, Western Mallee.
Local Government Areas (LGAs): Beverley, Bruce Rock, Coolgardie, Corrigin, Cunderdin, Dalwallinu, Dundas, Esperance, Kalgoorlie-Boulder, Kellerberrin, Kent, Kondinin, Koorda, Kulin, Lake Grace, Laverton, Leonora, Menzies, Merredin, Mount Magnet, Mount Marshall, Mukinbudin, Narembeen, Nungarin, Perenjori, Ravensthorpe, Westonia, Wongan-Ballidu, Wyalkatchem, Yilgarn.
Habit and leaf form. Shrubs, 0.3–1.5 m high. Branchlets not glaucous. Leaves simple, 10–20 mm long overall. Leaf blade 0.5–2 mm wide, undissected, subterete or flat, linear. Margins entire, revolute, enclosing the lower surface of the leaf blade, forming two grooves with the midvein. Hairs straight.
Inflorescence and floral features. Inflorescence axillary, or terminal; a raceme. Flowers red, very irregular. Pedicel 4–5 mm long. Perianth 10–12 mm long, glabrous, 4 -partite; lobes all free. Stamens 4. Pistil 14–18 mm long, stipitate; stipe 0.5–2 mm long. Ovary glabrous. Styles glabrous, green or red. Pollen presenter oblique.
Fruit features. Fruit colliculose, oblong or ovoid, glabrous, not viscid, 8–11 mm long, 3–5 mm wide.
Flowering Time. May, or June, or July, or August, or September, or October.
Habitat. Amongst medium trees, or low trees; in gravelly soil, or sand, or loam, or clay.
Distribution. Western Australia. Western Australian Botanical Province(s): Eremaean and South-west; IBRA Bioregions ER: YAL, MUR, GVD, COO, and NUL; IBRA Bioregions SW: AW, MAL, and ESP. Western Australian native; endemic to Western Australia.
Etymology. acuaria (L): acus - needle, alludes to the needle-like foliage in some forms.
Descriptions were generated using DELTA format and DELTA software: Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993 onwards, 1995 onwards, 1998)
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