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.

Phaenosperma globosum

HABIT Perennial; caespitose. Culms 100–300 cm long. Ligule an eciliate membrane. Leaf-blades inverted; lanceolate; 20–45 cm long; 15–25 mm wide. Leaf-blade venation slanting obliquely from midrib; with distinct cross veins.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 25–40 cm long. Primary panicle branches whorled at most nodes.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong, or orbicular (at maturity); dorsally compressed (slightly when young), or laterally compressed (as grain expands); 4–5 mm long; falling entire.

GLUMES Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.75 length of upper glume; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.75 length of adjacent fertile lemma; hyaline; without keels; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma obovate; 4–5 mm long; membranous; without keel; 3–7 -veined. Lemma apex obtuse. Palea 1 length of lemma; 2 -veined. Palea apex obtuse.

FLOWER Lodicules 3. Anthers 3. Stigmas 2. Ovary glabrous.

FRUIT Caryopsis with tardily free pericarp; orbicular; isodiametric; 2.5 mm long. Hilum linear; 1 length of caryopsis.

DISTRIBUTION Asia-temperate: China and eastern Asia. Asia-tropical: India.

NOTES Phaenospermateae. WDC.

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