Ludwigia octovalvis
mexican primrose-willow, mexican primrosewillow, narrow-leaf water primrose, seedbox, mexican primrose willow
Family
Onagraceae
Leaf Arrangement
alternate
Leaf Type
simple
Leaf Shape
lanceolate, ovate
Growth Form
forb, shrub
Flower Color
yellow
Flower Petals
4
Flower Month
July - October
Height (meters)
1.0
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
annual, perennial
Wetland Class
OBL
Wetland Coefficient of Conservatism
3
Field Characters
Capsules linear oblong and somewhat 4 angled, petals 4-5, sepals 4. An annual in parts of its range where frost can be severe. Long seed pod. Stems hairy at top sometimes. Black stipules near leaf base.
Habitat
Swamps.