Long-fruited Prim-rose Willow

Catalogue Type
Weed Catalogue
Scientific Name
Ludwigia octovalvis (Jacq.) Raven
Family
Onagraceae
Distinguishing Characters
responsive to fertilizers; red hypocotyl, entire
seedling often reddish
Photo of Weed
Description

Found in: lowland Establishment method: WS, TP
Growth habit: erect, much-branched and robust herb;
up to 1.5 m Moisture: wet to damp; drier than L. adscendens
Competitiveness: high Seed contaminant: yes
Cultural control: early flooding or hand weeding
Reported resistance: none Life cycle: perennial
Method(s) of reproduction: seeds and plant fragments
Dormancy: low or none; light requirement for germination
Flower: yellow, 4 petals each about 10 mm long
Elevation: up to 1,500 m Light: partial shade to sunny