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Flaigg, Norman G.
Ludwigia octovalvis (Jacq.) Raven
Mexican primrose-willow, Narrow-leaf Water Primrose, Seedbox, Mexican Primrose Willow
USDA Symbol: LUOC
USDA Native Status: Native to U.S.
Plant CharacteristicsDuration: Perennial Habit: Shrub Leaf Retention: Deciduous Size Notes:
Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Jul , Aug , Sep , Oct
AL , FL , GA , HI , LA , MS , NC , SC , TX Native Habitat:
Swamp and wetlands plant that occurs mainly in the southern half of Texas. USDA Native Status: L48(N), HI(N), PR(N), VI(N)
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
Herbarium Specimen(s)NPSOT 0127
Collected Sept. 7, 1991 in Bexar County by Lottie Millsaps
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Record Modified: 2009-07-01
Research By: ADA, NPIS, LAL