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''Acacia ligulata'' is a species of ''Acacia'', a dense shrub widespread in all states of mainland Australia.〔(World Wide Wattle. Retrieved June 2012 )〕 It is not considered rare or endangered. Common names include sandhill wattle, umbrella bush, marpoo, dune wattle, small coobah,〔Cunningham, G. M., Mulham, W. E., Milthorpe, P. L., & Leigh, J. H. (1992). Plants of western New South Wales. Melbourne & Sydney, Australia: Inkata Press. p. 365.〕 watarka, and wirra.〔Moore, P. (2005). A guide to plants of inland Australia. Sydney, Australia: New Holland Publishers (Australia) Pty Ltd. p. 331.〕 The genus ''Acacia'' is derived from the Greek ''akakia'', referring to sharp thorns.〔(Allan, R., Woodgroup SA Inc. Retrieved June 2012 )〕 The shape of the phyllodes named the species ''ligulata'', meaning strap-like or with a small tongue in Latin.〔Simmons, M. H. (1988). Acacias of Australia, vol. 2. Ringwood, Australia: Penguin Books Australia Ltd. p. 166.〕 ==Description== ''Acacia ligulata'' grows as an erect or spreading shrub, 2 to 4 meters tall〔Harden, G. J.. (2002). Flora of New South Wales.Vol.2. Sydney, Australia: University of New South Wales Press Ltd. p. 450.〕 and 3 meters across,〔Rotherham, E. R., Briggs, B. G., Blaxell, D. F., & Carolin, R. C. (1975). Australian Flora in colour – Flowers and plants of New South Wales and southern Queensland. Sydney, Australia: A. H. & A. W. Reed Pty Ltd. p. 150.〕 sometimes dome-shaped,〔 often branching from the ground. The bark is often grooved at the base, but is otherwise smooth.〔 Its branchlets are angular with yellowish ribs, often with hair.〔Tame, T. (1992). ''Acacias'' of southeast Australia. Kenthurst, Australia: Kangaroo Press Pty Ltd. p. 136.〕 The phyllodes, appearing like leaves, are light to blue green,〔 usually linear-oblong,〔 slightly curved,〔 3–10 cm long and 4-10mm wide, thick and hairless, and wrinkled during dry periods. They have a prominent yellowish mid-vein,〔 lateral veins not apparent.〔The Royal Botanic Gardens and Domain Trust. PlantNET - The Plant Information Network System of The Royal Botanic Gardens and Domain Trust, Sydney, Australia. Retrieved June 2012 ()〕 The tip of the phyllode is obtuse with a (mucro ),〔 a small hard point,〔Greig, D. (2002). A photographic guide to wildflowers of outback Australia. Sydney, Australia: New Holland Publishers (Australia) Pty Ltd. p. 71.〕 pointing downward.〔 Two to four glands are found below the center of the phyllode and near the mucro.〔 Yellow to orange globular flower heads of 5-6mm diameter, singular or 2 to 5 in short axillary racemes,〔 sit on sparsely pubescent peduncles 4-10mm long.〔 Each flower head consists of about 20 minute flowers.〔 The seed pods, legumes,〔 are light brown and curved,〔 5–10 cm long and 5-10mm wide,〔 constricted between the seeds and breaking easily into one-seeded segments.〔 The stalk of the seed pod is orange to red.〔 The seeds appear black and oval shaped, up to 3.5x3.5mm in size, situated longitudinal within the seed pod.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Acacia ligulata」の詳細全文を読む スポンサード リンク
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