Machaerina

For the genus of plants described by Nees, see Lepidosperma.

Machaerina (twigrush)^[2] is a genus of flowering plants in the sedge family. Its species occur in tropical America, the West Indies, Malesia, Australia and the Pacific region. The name comes from the Greek machaira (a large knife), alluding to the shape of the leaves in the type species – Machaerina restioides.^[3]

Machaerina
Machaerina angustifolia on Maui, Hawaii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Cyperaceae
Genus:	Machaerina M.Vahl (1805)
Synonyms[1]
Baumea Gaudich. Vincentia Gaudich. Chapelliera Nees Trachyrhynchium Nees Terobera Steud. Agylla Phil.

Description

The species in the genus are rhizomatous perennials. The leaves are mainly basal, with a few cauline, laterally compressed, distichous and equitant at base. The culms are tufted and pithy. The inflorescence consists of several partial panicles. The flowers may be bisexual or male.^[3]

Species

Described species include:^[4]

• Machaerina acuta (Labill.) J.Kern
• Machaerina anceps (Poir.) Bojer
• Machaerina angustifolia (Gaudich.) T.Koyama
• Machaerina arthrophylla (Nees) T.Koyama
• Machaerina articulata (R.Br.) T.Koyama
• Machaerina aspericaulis (Kük.) T.Koyama
• Machaerina austrobrasiliensis M.T.Strong
• Machaerina ayangannensis M.T.Strong
• Machaerina bidwellii (Stapf ex Setch.) T.Koyama
• Machaerina complanata (Berggr.) T.Koyama
• Machaerina cubensis (Kük.) T.Koyama
• Machaerina deplanchei (Boeckeler) T.Koyama
• Machaerina disticha (C.B.Clarke) T.Koyama
• Machaerina ekmanii (Kük.) T.Koyama
• Machaerina ensifolia (Boeckeler) T.Koyama
• Machaerina ensigera (Hance) T.Koyama
• Machaerina falcata (Nees) T.Koyama
• Machaerina ficticia (Hemsl.) T.Koyama
• Machaerina filifolia Griseb.
• Machaerina flexuosa (Boeckeler) J.Kern
• Machaerina glomerata (Gaudich.) T.Koyama
• Machaerina gunnii (Hook.f.) J.Kern
• Machaerina hirta Boeckeler
• Machaerina huttonii (Kirk) T.Koyama
• Machaerina insularis (Benth.) T.Koyama
• Machaerina involuta H.St.John
• Machaerina iridifolia (Bory) T.Koyama
• Machaerina johnsonii (K.L.Wilson) K.L.Wilson ^[5]
• Machaerina juncea (R.Br.) T.Koyama
• Machaerina lamii (Kük.) J.Kern
• Machaerina lavarum (Poir.) Bojer
• Machaerina laxa (Nees) T.Koyama
• Machaerina maingayi (C.B.Clarke) T.Koyama
• Machaerina mariscoides (Gaudich.) J.Kern
• Machaerina milnei (C.B.Clarke) T.Koyama
• Machaerina montana (J.Raynal) Lye
• Machaerina monticola (Guillaumin) T.Koyama
• Machaerina muelleri (C.B.Clarke) T.Koyama
• Machaerina myriantha (Chun & F.C.How) Y.C.Tang
• Machaerina nuda (Steud.) J.Kern
• Machaerina nukuhivensis (F.Br.) T.Koyama
• Machaerina planifolia (Benth.) K.L.Wilson^[6]
• Machaerina preissii (Nees) L.A.S.Johnson & Koyama
• Machaerina raiateensis (J.W.Moore) S.L.Welsh
• Machaerina restioides (Sw.) Vahl
• Machaerina riparia (Nees) T.Koyama
• Machaerina rubiginosa (Spreng.) T.Koyama
• Machaerina scirpoidea (Steud.) T.Koyama
• Machaerina sinclairii (Hook.f.) T.Koyama
• Machaerina tenax (Hook.f.) T.Koyama
• Machaerina teretifolia (R.Br.) T.Koyama
• Machaerina tetragona (Labill.) T.Koyama
• Machaerina vaginalis (Benth.) T.Koyama