Ludwigia octovalvis (Jacq.) P.H. Raven
Mexican Primrose-willow, Narrow-leaf Water Primrose, Seedbox, Mexican Primrose Willow
Onagraceae (Evening Primrose Family)
USDA Symbol: LUOC
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Fruit Type: Capsule
Size Notes: Up to about 12 feet tall, often shorter.
Bloom InformationBloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct
DistributionUSA: AL , FL , GA , HI , LA , MS , NC , SC , TX
Native Habitat: Swamp and wetlands plant that occurs mainly in the southern half of Texas.
Growing ConditionsWater Use: Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
Conditions Comments: This Water Primrose is a shrubby herbaceous plant that grows well in moist or shallow, submerged soils. The one inch, bright yellow flowers are numerous in the summer months and look great in a pond with other plants like Swamp Milkweed, Powdery Thalia, and Scarlet Rose-Mallow. It is fast growing and reseeds heavily. May need periodic trimming to prevent them from growing too large and overcoming other plants. Host plant for the Water-primrose hornworm moth, caterpillars and moths that are spectacular to see.
BenefitConspicuous Flowers: yes
Larval Host: Water-primrose hornworm moth
Nectar Source: yes
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Brackenridge Field Laboratory - Austin, TX
Nueces River Authority - Uvalde, TX
Stengl Biological Research Station - Smithville, TX
Herbarium Specimen(s)NPSOT 0127 Collected Sept. 7, 1991 in Bexar County by Lottie Millsaps
BibliographyBibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Ludwigia octovalvis in USDA Plants
FNA: Find Ludwigia octovalvis in the Flora of North America (if available)
Google: Search Google for Ludwigia octovalvis
MetadataRecord Modified: 2023-02-17
Research By: ADA, NPIS, LAL