GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Bothriochloa campii

HABIT Perennial. Culms erect; 60–80 cm long. Culm-internodes glandular (below nodes); distally glabrous. Culm-nodes bearded. Leaf-sheaths longer than adjacent culm internode; keeled; glabrous on surface, or pubescent. Ligule an eciliate membrane; 2 mm long. Collar bearded. Leaf-blades 10–22 cm long; 3–10 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle with branches tipped by a raceme.

Panicle nodding; 8–12 cm long. Panicle axis glandular; glabrous.

Racemes 2–5 cm long. Rhachis fragile at the nodes; flattened; ciliate on margins. Rhachis hairs 1–4 mm long. Rhachis internodes linear. Rhachis internode tip transverse.

Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; flattened; with a translucent median line (also present in internodes); ciliate; hairy all along but hairs longer above; with 1–4 mm long hairs.

STERILE SPIKELETS Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; 5 mm long. Companion sterile spikelet glumes pitted (1–2 pits). Companion sterile spikelet lemmas muticous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 4–6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base obtuse; attached transversely.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; cartilaginous; without keels; keel-less except near apex. Lower glume surface flat; scabrous; rough at apex; pitted; pilose; hairy below. Upper glume lanceolate; 1-keeled.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline. Fertile lemma linear; hyaline; without keel. Lemma apex entire; awned; 1 -awned. Principal lemma awn apical; geniculate; 15–18 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.

FLOWER Anthers 3.

DISTRIBUTION South America: western South America.

NOTES Andropogoneae. Swallen 2000.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.