Flora of the Hawaiian Islands
Monocotyledon Literature for Axonopus fissifolius
Barkworth, 2003; Wagner et al., 1990, 1999; Lorence & Wagner, 2019.
   Poaceae -- The Grass Family Bibliography
      Axonopus fissifolius

Common name(s): carpetgrass, narrow-leaved carpetgrass
General Information
DistributionNative in the SE United States and from central Mexico south to Bolivia and Argentina, commonly used as a pasture grass, now widely naturalized in the tropics and subtropics.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.

Perennial, usually cespitose; culms 10‒75 cm tall, erect or depressed-decumbent, sometimes stoloniferous, nodes of the stolons often pilose, internodes to 2 mm in diameter, pithy, glabrous, nodes glabrous or slightly pubescent.
Leaves with sheath compressed, glabrous, margins ciliate; ligule a truncate, ciliolate fringed membrane 0.2‒0.5 mm; blade 4‒15 cm long, 3‒6 mm wide, flat or folded, mostly glabrous, margin with papillose-based cilia near base, otherwise glabrous, apex obtuse.
Inflorescences 5‒11 cm long, composed of 2‒7 divergent racemes on a short common rachis, racemes slender, 3.5‒5 cm long, rachis trigonous, ca. 0.5 mm in diameter, scabrous on angles, peduncle exserted to 16 cm from terminal sheath. Spikelets subsessile, imbricate, elliptic-obovate, 2.3‒2.8 mm long, acute, pedicel less than 0.2 mm long, sparsely pubescent on margin of glume and sterile lemma and at apex; second glume and first (sterile) lemma equal, 2-veined, veins submarginal; fertile floret pale yellowish brown.
Caryopses 1.5‒1.8 mm long, compressed ellipsoid to lenticular, tan to pale brown or gray.
2n = 20, 40, 80, 100
David Lorence & W. L. Wagner