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Inflorescences

Dissections:
Elionurus tripsacoides

ELIONEURUS Humb. & Bonpl. Balsamscale
Plants hermaphroditic, caespitose or rhizomatous, annual or perennial (our species). Culms erect or ascending; internodes solid, glabrous or pubescent, terete; nodes glabrous. Leaves basal and cauline (shoots aromatic or not aromatic), not distinctly distichous; sheaths terete, margins open; auricles absent; ligules a ciliate membrane or a line of hairs; blades flat or folded or involute, linear (narrow), lax, apex acuminate. Spicate racemes terminal and axillary (a few inflorescences per culm), sheaths subtending inflorescence not inflated or spathe-like, rachis hairy; pedicels not longtudinally grooved, hairy, semiterete. Spikelets paired at inflorescence nodes (at apex ternate), similar in size and shape, disarticulation below the glumes, dorsiventrally compressed; sessile (or short pediceled) spikelets fertile, pedicellate (long pediceled) spikelets staminate. Pedicellate spikelets well developed, awnless. Sessile spikelets perfect; first glumes 2-keeled, not with a gland-like depressions or pits; abaxial surface convex or flat, rough, indurate, scabrous to hairy, awnless; second glumes length equal to first glumes, longer than florets; lower lemmas floret sterile, hyaline, entire, awnless; paleas absent; upper floret lemmas fertile hyaline (0-veined), entire (acute), awnless; paleas present or absent, hyaline and reduced when present. Stamens 3; anthers brown or yellow or purple. Caryopses dorvsiventrally compressed. Base chromosome number x=10.

A genus of about 15 species that are adapted to tropical and subtropical regions of the world. Many of the taxa are important livestock forages of grasslands and savannahs.