Porteresia Tateoka
  • Bull. Natl. Sci. Mus. Tokyo, B 8: 406 (1965) 

General Description

HABIT Perennial. Culms decumbent; 50-90 cm long; rooting from lower nodes. Ligule an eciliate membrane. Leaf-blades coriaceous. Leaf-blade margins cartilaginous. INFLORESCENCE Inflorescence a panicle. Panicle contracted. Spikelets solitary. Fertile spikelets pedicelled. Pedicels tip discoid. FERTILE SPIKELETS Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 10-12 mm long; falling entire. Spikelet callus attached transversely. GLUMES Glumes both absent or obscure. FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret subulate. Fertile lemma oblong; coriaceous; keeled; 9 -veined. Lemma apex rostrate; awned; 1 -awned. Principal lemma awn pungent. Palea 1 length of lemma; coriaceous; 4 -veined. FLOWER Lodicules 2. Anthers 6. FRUIT Caryopsis with adherent pericarp; oblong; isodiametric; biconvex. Embryo 0.5 length of caryopsis. Hilum linear; 1 length of caryopsis. DISTRIBUTION Tropical Asia.


  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 Information From

GrassBase - The Online World Grass Flora
Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 24 January 2012; 14:30 GMT]
  • A © Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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