Ludwigia pilosa

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Ludwigia pilosa
Ludw pilo.jpg
Photo by Bob Upcavage, Atlas of Florida Vascular Plants
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Myrtales
Family: Onagraceae
Genus: Ludwigia
Species: L. pilosa
Binomial name
Ludwigia pilosa
Walter
LUDW PILO dist.jpg
Natural range of Ludwigia pilosa from USDA NRCS Plants Database.

Common name: hairy primrose-willow

Taxonomic notes

Description

“Repent or erect, usually branched, short-lived perennials, or rarely annual. Floral parts in 4-7’s; hypanthium not prolonged beyond ovary. Capsules longitudinally or poricidally multiseriate, rarely uniseriate. Most of the erect species produce basal offshoots, which have ovate to obovate leaves, in the late summer and fall. Bracteoles occur in pairs on the pedicel or stipe or on the base of the hypanthium.” – Radford et al 1964

"Stems erect, branched, densely pubescent, to 9 m tall. Leaves alternate, elliptic to lanceolate, pubescent, to 7.5 cm long and 13 mm wide; petioles absent or rarely to 2 mm long. Sepals 4, deltoid-ovate, ca. 4 mm long; petals usually absent. Capsules subglobose, pubescent, 3-3.8 mm long and broad; bracteoles linear, 2.5-4.2 mm long; pedicels absent or less than 1 mm long." - Radford et al 1964

Distribution

Ecology

Habitat

This species can be found in marshes, open meadows, seepages, cypress-gum ponds, bogs, open pinewood lands, as well as edges of hammocks in wet, peaty, loamy sand and mud (FSU Herbarium). It also has been observed in human disturbed areas such as lawns, ditches, clear cut pinewoods, along roadsides, edges of pine plantations, along canals, and near parking areas (FSU Herbarium). Associated species include Ludwigia sphaerocarpa, Cypress, Liquidambar styraciflua, Magnolia, Nyssa, Pinchkneya, Quercus, Ludwigia linearis, Ludwigia octovalvis, Carex, Juncus, Cyperus, Sagittaria, Lythrym, Boltonia, Helianthus, Taxodium, Acer, Pinus elliottii, Ludwigia microcarpa, Lycopus, Ludwigia hirtella, and Ludwigia alata (FSU Herbarium).

Phenology

This species has been observed to flower from July through October and fruit from July through November (FSU Herbarium).

Seed dispersal

Seed bank and germination

Fire ecology

Pollination

Use by animals

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: P. Adams, Loran C. Anderson, Robert K. Godfrey, Almut G. Jones, R. Kral, Robert L. Lazor, Sidney McDaniel, Marc Minno, Neal Morar, T. Myint, R. A. Norris, R. E. Perdue, Jr., Cecil R Slaughter, R. R. Smith, and Jean W. Wooten. States and Counties: Bay, Calhoun, Clay, Columbia, Duval, Escambia, Franklin, Gadsden, Gulf, Holmes, Jefferson, Leon, Liberty, Nassau, Okaloosa, Polk, Santa Rosa, Wakulla, Walton, and Washington. Georgia: Grady.

Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 744-7. Print.