Dichanthium caricosum (L.) A. Camus
Andropogon caricosus L.
Family: Poaceae (alt. Gramineae) subfamily: Panicoideae tribe: Andropogoneae.
Nadi blue grass (Fiji); Antigua hay grass (West Indies); jiribilla (Cuba); roadside bluestem (USA).
A creeping stoloniferous perennial with blue-tinged stems and fine pointed leaves, 4–20 cm long, 2–6 mm wide. Stolons can grow to 1.5–2 metres; nodes are generally hairless. Slender seed stems grow to 45 cm. 1–3 racemes, usually 2, 2–10 cm long, on a many-jointed rachis. Spikelets paired, one sessile and one stalked. Spikelets are all very close together and overlap each other. Only the sessile spikelet has an awn , 1–2.5 cm long.
D. caricosum has erect, semi-erect and spreading forms in northern India.
South Asia: India, Sri Lanka.
Indo-China: Myanmar, Thailand.
Malesia: Indonesia, Malaysia, Papua New Guinea.
West Indies and in Fiji and other Pacific Islands. Dominant grass in savannas of north-east Java, Indonesia. Becoming popular in the Chaco region of northern Argentina.
A semi-improved perennial grazing pasture with excellent ground cover. For permanent pastures and erosion control.
Palatable and readily eaten by cattle, sheep, goats and horses.
LWGs of 100 kg/ha/yr from unimproved grassland at a stocking rate of 2.5 steers/ha; 150 kg/ha/yr with legumes (sown Macroptilium atropurpureum and naturalised Desmodium heterophyllum ) and superphosphate. Animals may lose weight during the dry season because of lack of growth of grass .
Fluffy seed can be hand-harvested with sickles or mechanically harvested with a brush harvester.
No information available.
- Well adapted to heavier soils.
- Very tolerant of heavy grazing.
- Easy to establish.
- Good control of herbaceous weeds.
- Poor production during the dry season.
- Fluffy seed is difficult to handle.
- Susceptible to nematodes on light soils.
- Bisset, W.J. and Sillar, D.I. (1984) Angleton grass (Dichanthium aristatum ) in Queensland. Tropical Grasslands, 18, 161-174.
- Partridge, I.J. (1979) Improvement of Nadi blue grass (Dichanthium caricosum ) pastures on hill land with superphosphate and siratro: effects of stocking rate on beef production and botanical composition. Tropical Grasslands, 13, 157–164.
- Partridge, I.J. and Ranacou, E. (1974) Effects of supplemental Leucaeana leucocephala browse on steers grazing Dichanthium caricosum in Fiji. Tropical Grasslands, 8, 107–112.
- Vivier, M. and Doreau, M. (1979) Natural Dichanthium caricosum grassland in Guadeloupe. Agronomie Tropicale, 34, 362–371.
|India (1971)||Produce 40-100% more dry matter than the naturally occurring strain.||‘Marvel 93’|
|India (1971)||Produce 40-100% more dry matter than the naturally occurring strain.||‘Alabang X’||Philippines||This may be D. caricosum and not D. aristatum .