| Taxon | Illustrator ⠉ | |
|---|---|---|
 | Hackelochloa granularis | Cindy Roché Linda A. Vorobik |
Plants annual; cespitose. Culms 20-120 cm, erect to decumbent, often rooting at the lower nodes, branching above the bases. Leaves not aromatic; sheaths open; auricles absent; ligules membranous, ciliate. Inflorescences terminal and axillary, solitary, 2-sided rames, these some¬times fascicled and partially enclosed in subtending leaf-sheaths at maturity; disarticulation in the rames, beneath the sessile spikelets. Spikelets in heterogamous sessile-pedicellate pairs. Sessile spikelets hemispherical, partly embedded in the rame axes; lower glumes as long as the spikelets, indurate, alveolate, indistinctly 7-11-veined, not keeled, margins involute; upper glumes chartaceous, 3-veined, usually adherent to the rame axes; lower florets sterile; upper florets bisexual; anthers 3. Pedicels adnate to the rame axes, concealed by the sessile spikelets. Pedicellate spikelets as long as or longer than the sessile spikelets, ovate; lower glumes dorsally compressed, 5-9-veined; upper glumes laterally compressed, 5-7-veined; lower florets sterile; upper florets staminate; anthers 3. x = 7 (probably).
Distribution
Puerto Rico, Miss., Tex., La., Md., Mo., Ala., Pacific Islands (Hawaii), Ga., Ariz., Fla., N.Mex.
Discussion
Hackelochloa is treated here as a monospecific genus that is widely distributed in warm regions of the world, often as a weed. Veldkamp et al. (1986) combined it with Coelorachis Brongn., Heteropholis C.E. Hubb., Ratzeburgia Kunth, and Rottboellia formosa R. Br. in Mnesithea Kunth. The traditional treatment for Hackelochloa is retained here.
Selected References
Lower Taxa
"decumbent" is not a number.