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.
Panicum aristellum
HABIT Perennial; caespitose. Culms 100–200 cm long. Leaf-sheaths as wide as blade at the collar. Ligule a ciliate membrane. Leaf-blades 30–50 cm long; 10–20 mm wide. Leaf-blade margins cartilaginous. Leaf-blade apex attenuate.
INFLORESCENCE Inflorescence a panicle.
Panicle open; oblong; 15–40 cm long; contracted about primary branches. Primary panicle branches bearing spikelets almost to the base. Panicle branches scabrous; bearded in axils.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2–2.8 mm long; falling entire.
GLUMES Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75 length of spikelet; membranous; without keels; 5 -veined. Lower glume surface puberulous. Lower glume apex acute; awned; 1 -awned. Lower glume awn 0.5 mm long. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface puberulous. Upper glume apex acute; awned; 1 -awned. Upper glume awn 0.5–1 mm long.
FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; 1 length of spikelet; membranous; 7 -veined; puberulous; acute. Fertile lemma oblong; dorsally compressed; 2–2.8 mm long; indurate; pallid; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
DISTRIBUTION South America: Brazil.
NOTES Paniceae. Fl Cat.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.