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Weed Description: An erect
summer annual that may reach 32 inches in height. Red Rice is primarily a weed of
rice and occurs in parts of Texas, Louisiana, Arkansas, and Mississippi where rice is
grown. Roots: A fibrous root system. |
Red Rice: Oryza Sativa
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Weed Description: An erect
summer annual that may reach 32 inches in height. Red Rice is primarily a weed of
rice and occurs in parts of Texas, Louisiana, Arkansas, and Mississippi where rice is
grown. Roots: A fibrous root system. |
| Leaves: Mature leaf blades are from
12 to 24 inches long and 7 to 20 mm wide. Leaves have auricles and also have a long
(15 mm) membranous ligule that is triangular in outline. Some hairs occur in the
collar regions. Stems: Sheaths are tufted and without hairs except in the collar regions. |
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Flowers: Seedhead is a loose panicle,
often somewhat drooping, reaching a maximum length of 8 inches. Panicles consist of
many spikelets that are 7 to 10 mm long and 2 to 2 1/2 mm wide. Identifying Characteristics: The presence of auricles and tall membranous ligule are both characteristics that help in the identification of red rice. |