Zoysia matrella
Plants rhizomatous. Culm-internodes 5-40 mm, at least some on each plant longer than 14 mm. Sheaths glabrous; ligules 0.07-0.25 mm; blades to 7 cm long, 0.5-2.5 mm wide, patent, weakly involute when fully hydrated, to strongly involute when stressed, surfaces glabrous or sparsely pilose. Peduncles extending (0.3) 1-6 cm beyond the sheaths of the flag leaves. Racemes 1-4 cm, with 10-40 spikelets; pedicels 0.6-1.6 mm. Spikelets 2.1-3.2 mm long, 0.6-1 mm wide, lanceolate, unawned or awned, awns to 1 mm. 2n = 20, 40.
Distribution
Puerto Rico, Ga., N.C., Ala., Pacific Islands (Hawaii), Miss., Fla., N.Mex.
Discussion
Many of the Zoysia lawn grasses grown in the southern and eastern United States are derived from hybrids between Z. matrella and Z. pacifica or Z. japonica, and have retained many of the characteristics of Z. matrella. They are used as lawn grasses from Connecticut southwards, and have occasionally been found as escapes in that region.
Selected References
None.
Lower Taxa
"decumbent" is not a number.