Horse purslane/ Giant Pigweed

Catalogue Type
Weed Catalogue
Scientific Name
Trianthema portulacastrum L.
Family
Aizoaceae
Distinguishing Characters
green (most competitive) and red (most reproductive)
biotypes in India; solar-tracking leaves; may produce
3 to 4 fl ushes in one season
Photo of Weed
Description

Found in: lowland, upland Establishment method: DS > WS
Growth habit: prostrate to ascending, much branched,
with fleshy leaves; up to 0.5 m
Moisture: dry to moist Emergence time: with rice
Competitiveness: moderate Seed contaminant: unknown
Cultural control: flooding; tillage often ineffective because
of stem regrowth; do not allow to mature; remove
fruiting plants from fi eld to stop shedding
Reported resistance: none Life cycle: annual Seed wt: 1.3
Method(s) of reproduction: seeds Maturity time: flowers in 20–30 d; maturity about 20 d
after pollination Dormancy: secondary; long viability because of hard seed
Flower: white to pale pink Elevation: up to 800 m Light: partial shade