Gahnia

Gahnia (sawsedge, saw-sedge) is a genus of sedges native to China, Southeast Asia, New Guinea, Australia, New Zealand and a number of Pacific Islands. The common name is due to the toothed margins. It often forms tussocks.

==Species== Accepted species: Gahnia ancistrophylla Benth. – Western Australia, South Australia, Victoria Gahnia aristata Benth. – Western Australia Gahnia aspera (R.Br.) Spreng. – Maluku, New Guinea, Queensland, New South Wales, Melanesia, Bonin Islands, Hawaii Gahnia australis (Nees) K.L.Wilson – Western Australia Gahnia baniensis Benl. – Fujian, Guangdong, Guangxi, Hainan, Vietnam, Borneo, Malaysia, Sumatra Gahnia beecheyi H.Mann – forest sawsedge – Hawaii Gahnia clarkei Benl – New Guinea, New South Wales, Queensland, Victoria Gahnia decomposita (R.Br.) Benth. – Western Australia Gahnia deusta (R.Br.) Benth. – Western Australia, South Australia, Victoria Gahnia drummondii (Steud.) K.L.Wilson – Western Australia Gahnia erythrocarpa R.Br. – New South Wales Gahnia filifolia (C.Presl) Kük. ex Benl – New South Wales Gahnia filum (Labill.) F.Muell.— chaffy sawsedge – Australia, all states except Queensland Gahnia graminifolia Rodway – Tasmania Gahnia grandis (Labill.) S.T.Blake – Queensland, New South Wales, Victoria Gahnia halmaturina R.L.Barrett & K.L.Wilson – South Australia Gahnia howeana R.O.Gardner – Lord Howe Island Gahnia hystrix J.M.Black – Kangaroo Island Gahnia insignis S.T.Blake – Queensland, New South Wales Gahnia javanica Moritzi – Yunnan, Vietnam, Malaysia, Borneo, Java, Sumatra, Sulawesi, Philippines, New Guinea, Solomon Islands Gahnia lacera (R.Lesson ex A.Rich.) Steud. – Cutty grass – New Zealand North Island Gahnia lanaiensis O.Deg., I.Deg. & J.Kern -- Lanaʻi sawsedge – Lanaʻi Island of Hawai'i Gahnia lanigera (R.Br.) Benth. – Western Australia, South Australia, Victoria, New South Wales Gahnia marquisensis F.Br. – Marquesas Gahnia melanocarpa R.Br. – Black-fruit saw-sedge – Queensland, New South Wales, Victoria Gahnia microcarpa Guillaumin – New Caledonia Gahnia microstachya Benth. – Victoria, New South Wales, Tasmania Gahnia novocaledonensis Benl – New Caledonia Gahnia pauciflora Kirk – Cutting sedge – New Zealand North and South Islands Gahnia procera J.R.Forst. & G.Forst. – Mountain sedge – New Zealand North and South Islands Gahnia radula (R.Br.) Benth. – Thatch saw-sedge – Victoria, New South Wales, Tasmania, South Australia Gahnia rigida Kirk – New Zealand North and South Islands Gahnia schoenoides G.Forst. – Society Islands Gahnia sclerioides K.L.Wilson – Western Australia Gahnia setifolia Hook.f. – Māpere, razor sedge – New Zealand North and South Islands Gahnia sieberiana Kunth – Red-fruited saw sedge – Australia, New Guinea, Sulawesi, Solomon Islands, New Caledonia Gahnia sinuosa J.Raynal – New Caledonia Gahnia subaequiglumis S.T.Blake – Queensland, New South Wales, Victoria Gahnia trifida Labill. – Coast saw-sedge – Victoria, South Australia, Tasmania, Western Australia Gahnia tristis Nees in W.J.Hooker & G.A.W.Arnott – China, Ryukyu Islands, Thailand, Vietnam, Borneo, Malaysia, Sumatra Gahnia vitiensis Rendle -- Fijian sawsedge – Fiji, Hawaii Gahnia xanthocarpa (Hook.f.) Hook.f. – Māpere, gahnia – New Zealand North and South Islands