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Ludwigia species [Onagraceae]

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Scientific Name Ludwigia leptocarpa USDA PLANTS Symbol LULE4
Common Name Angle-stem Primrose-willow ITIS Taxonomic Serial No. 27349
Family Onagraceae (Evening Primrose) SEINet
Reference
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Description Habitat: Low wet areas in swamps, edges of ponds, streams and ditches.
Plant: Upright annual or perennial 1 to 5 feet tall, numerous branches; stems have longitudinal lines and are densely hairy.
Leaves: Alternate, broadly lanceolate, 1-3/8 to 7 inches long and 3/8 to 1-5/8 inches wide; petioles 3/4 to 1-3/8 inches long.
Inflorescence: Solitary flower heads on pedicels from upper leaf axils, each about 3/4 inches across, with 5 bright yellow obovate petals with narrow bases; and usually 5 green sepals and usually 10 stamens.
Bloom Period: August to October.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of Texas" by Michael Eason, Missouri Plants and SEINet.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Ludwigia octovalvis USDA PLANTS Symbol LUOC
Common Name Mexican Primrose-willow, Water Primrose ITIS Taxonomic Serial No. 503565
Family Onagraceae (Evening Primrose) SEINet
Reference
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Description Habitat: Moist environments; streamsides, wet ditches.
Plant: Upright perennial 1 to 5 feet tall, numerous branches.
Leaves: Narrowly lanceolate, petiolate to sessile up to 4 inches long.
Inflorescence: Solitary flower heads on pedicels from leaf axils, each about 1-5/8 inches across, with 4 bright yellow petals and 4 green sepals and 8 stamens.
Bloom Period: July to October.
References: "Wildflowers of Texas" by Geyata Ajilvsgi and "Wildflowers of the Texas Hill Country" by Marshall Enquist.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2022