Oryza barthii, also called wild rice, or African wild rice, is a grass in the rice genus Oryza. It is an annual, erect to semierect grass. It has leaves with a short ligule (<13 mm), and panicles that are compact to open, rarely having secondary branching. The inflorescence structure are large spikelets, 7.7-12.3 mm long and 2.3-3.5 mm wide, with strong awns (up to 20 cm long), usually red. The inflorescences have anthers 1.5–3 mm long.
This wild rice grows in sub-Saharan Africa, and is found in mopane or savanna woodland, savanna or fadama. O. barthii grows in deep water, seasonally flooded land, stagnant water, and slowly flowing water or pools; it prefers clay or black cotton soils, and is found in open habitats. It is the progenitor of cultivated Oryza glaberrima, African rice.
Recently, the genome of O. barthii was sequenced.
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- Zhang, QJ.; Zhu, T.; Xia, EH.; Shi, C.; Liu, YL.; Zhang, Y.; Liu, Y.; Jiang, WK. et al. (Nov 2014). "Rapid diversification of five Oryza AA genomes associated with rice adaptation". Proc Natl Acad Sci U S A 111 (46): E4954–E4962. doi:10.1073/pnas.1418307111. PMID 25368197.
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