Note - this takes you off
of our website |
GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Paspalum longicuspe
HABIT Perennial. Culms prostrate; 100–150 cm long; spongy; rooting from lower nodes. Leaf-sheaths inflated. Ligule an eciliate membrane; 3 mm long; brown. Leaf-blades 6–16 cm long; 6–12 mm wide. Leaf-blade surface scabrous.
INFLORESCENCE Inflorescence composed of racemes.
Racemes numerous; 30–80; borne along a central axis; unilateral; 2–4 cm long. Central inflorescence axis 5–12 cm long. Rhachis deciduous from axis; broadly winged; foliaceous; folded longitudinally to embrace spikelets; 2–2.5 mm wide; scabrous on margins; terminating in a barren extension; extension flattened; extension 10–15 mm long. Spikelet packing abaxial; regular; 1 -rowed. Raceme-bases linear; 2–5 mm long.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; plano-convex; acuminate; 2.2–2.6 mm long; 1.1 mm wide; falling entire; deciduous with accessory branch structures.
GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume elliptic; 1 length of spikelet; hyaline; without keels.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; hyaline; mid-green and red (at base). Fertile lemma elliptic; 2 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
FLOWER Anthers 3.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION North America: Mexico.
NOTES Paniceae. Fl Nov Gal 1994.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.