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Cylindricfruit primrose-willow

Ludwigia glandulosa

Cylindricfruit primrose-willow
Photo: Andreea Filip, CC BY-SA 2.0

Ludwigia glandulosa is an amphibious perennial herb from the southeastern United States that grows either emerged or fully submerged in wetlands and ditches. It grows slowly and needs good light and some carbon dioxide, especially in aquarium or pond settings, to stay red-purple rather than fading green.

Family
Onagraceae (Evening-primrose family)
Grows as
Perennial
Light
Full sun
Water
Keep it in moist or waterlogged soil, or submerged in water with a pH of about 6 to 7.5.
Soil
Moist, wet mud or aquatic substrate.
How easy
Moderate
Native range
C. & E. U.S.A.
Climate
temperate

About

Ludwigia glandulosa, the small-flowered seedbox or the cylindricfruit primrose-willow, is an amphibious plant from southeast United States. It can grow partially or fully submerged. It grows very slowly and needs carbon dioxide in order to grow well. The leaves of this plant will turn greener if insufficient light is provided.

Where it grows

Ludwigia glandulosa can be found in wetland areas and roadside ditches throughout most of the southern states in North America. It is a threatened species in Indiana and endangered in Maryland. When including these wetland plant species, necessary protections may be restricted to the wetland and a buffer area. However, special precautions beyond the normal 100-foot buffer may be needed in order to protect the plants from invasive species and human activities. It is imperative that recommendations and guidance be done from the Maryland Department of Natural Resources before disturbance occurs.

Other Ludwigia plants

Water Primrose · Winged primrose-willow · Seedbox · Ludwigia anastomosans · Wingleaf primrose-willow · Large-flower primrose-willow · Floating Ludwigia · Water Primrose · Spindleroot · Seedbox · Ludwigia inclinata · Mexican primrose-willow

Text excerpted from the Wikipedia article Ludwigia glandulosa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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