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Oryza longiglumis Jansen

  • Distribution
    Distribution
  • Spikelet
    Spikelet
  • Habitat
    Habitat
  • Habitat
    Habitat

Explanations

Genome designation
HHJJ
Chromosome number
Tetraploid, 2n=48
Distribution
Southern New Guinea
Key characteristics
Flexuous sterile lemma as long or longer than spikelet, spikelet 7-8mm long and 1.8-2.2mm wide with trichomes in rows down its length. Palea and lemma papery. Awn about 1cm. Usually 1-2m tall
Habitat
Always in shaded forest habitats close to swamps or rivers that may seasonally inundate the forest floor. Perennial occurs as scattered plants in the forest.
Potentially useful traits
Shade tolerance
Notes
Very closely related to O. ridleyi.
References
Naredo, M.E.B., A.B. Juliano, B.R. Lu and M.T. Jackson. 2003. The taxonomic status of the wild rice species Oryza ridleyi Hook. f. and O. longiglumis Jansen (Ser. Ridleyanae Sharma et Shastry) from Southeast Asia. Genet. Resour. Crop Evol. 50: 477-488