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IGKV WEED SEARCH
weedsearch

IGKV WEED SEARCH

Weed Search Facility for students and scientists

Willow Primrose, False, Willow, Swamp, Water-primrose

Halbi Name
Main Photo of The Weed
Vernacular name Ban long
Scientific name Ludwigia octovalvis
Family
Season Kharif
Description
Plant An erect, stout, well-branched, robust herb of damp or flooded areas upto 2 m tall, annual or perennial, with long stiff hairs sometimes appressed and oriented in one direction. Stems - red-brown.
Leaves Leaves alternate, light green, may turn red upon aging, narrowly lanceolate to ovate, up to 15 cm long, 4-40 mm wide, densely velvety on both sides. Photo Gallery
Flower Flowers solitary in axils of leaves and at terminals. Four pale to bright yellow flowers, 1-2 cm long and 4-17 mm wide, broadly ovate and may be notched at apex.
Fruit/ seed Fruit is a thin-walled, 4-angled, narrowly cylindrical, 8-ribbed capsule, 3-5 cm long, 2-8 mm in diameter.
Habitat and distribution Moist placesponds banks
Flowering and fruiting August-February
Associated with Rice crops
Habit
Inflorescence

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