|Scientific Name||Brachiaria decumbens|
|Synonyms||Urochloa decumbens (Staph) R. D. Webster|
|Common Names||English: Surinam grass, signal grass; German: Surinamgras; Spanish: Braquiaria decumbens|
|Description||Low-growing, erect or decumbent, rhizomatous and stoliferous perennial, which is very similar in characteristics to Para grass (Brachiaria mutica) and Pangola grass (Digitaria decumbens).|
Winged rachis, 1.0-1.7 mm (0.039 - 0.067 inch) wide.
Leaves arise from trailing stolones that grow out of nodes. Leaf blades lanceolate.
Decumbent, 50-150 cm (19.68 - 59.05 inch) long, wiry.
Bright green, moderately hairy leaves, 7-20 mm (0.27 - 0.78 inch) wide and 5-25 cm (1.97 - 9.84 inch) long.
Two to five racemes, 2-5 cm (0.78 - 1.97 inch) long with broad ciliate rachis and 4 mm (0.16 inch) long spikelets. Spikelets are born in two rows, and the glumes and the lower lemma are membranous in texture.
Germination in spring.
Viability of Seeds
Less than 4 years.
Open grasslands, essentially a grass of the wet tropics, but with good drought tolerance and adapted to a dry season of four or five months.
Quick-drying, shallow, hillside soils.
Additional Crop Information
Vegetables, sugarcane, soybean.
B. decumbens forms an aggressive, high-yielding sward and has become an environmental weed by vigorously colonising disturbed environments. This weed is also replacing native plants and reducing the biodiversity (many herbivores reject B. decumbens as forage). Currently in Brazil, B. decumbens is considered a major weed in forestry, citrus, sugarcane, horse pastures, and along roadsides and is considered an important weed in other crops such as corn, soybean, and cotton.
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