|Photo by Karan A. Rawlins, University of Georgia, Bugwood.org|
|Division:||Magnoliophyta - Flowering plants|
|Class:||Magnoliopsida – Dicotyledons|
| Ludwigia hirtella|
|Natural range of Ludwigia hirtella from USDA NRCS Plants Database.|
Common name: Spindleroot
“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.” 
"Stems erect, strict or branched, densely pubescent, to 1m tall; roots fusiform. Leaves alternate, elliptic to lanceolate, pubescent, to 10 cm long and 2.5 cm wide; sessile. Sepals 4, reflexed, ovate, pubescent, 6.5-9 mm long, 3-4 mm wide; petals 4, 7-15 mm long, 5-12 mm wide; styles 1.5-3 mm long, stylopodium prominent. Capsules cubical, 4-angled, usually narrowly winged, appressed pubescent, 6-10 mm long, 4-5.7 mm broad; bracteoles linear, 2-4 mm long; pedicels to 15 mm long.” 
This species can be found in wet or drying sandy loam of open areas in wiregrass-longleaf pinewoods, low moist depressions, pine-saw palmetto flatwoods, bogs, floodplain woodland clearings and wet thickets.  It has also been observed to occur in human disturbed areas such as along roadsides, edges of pine plantations, ditches, gas pipeline right-of-ways, and power line corridors.  Associated species include Ludwigia alternifolia, L. glandulosa, L. linearis, L. pilosa, Pinus palutris, Serenoa repens, Cyrilla, Hypericum, Rhexia, Sabatia, Rhynchospora, Panicum, Macranthera, Bigelowia, Xyris, and Platanthera ciliaris. 
This species has been observed flowering and fruiting from July through September. 
Conservation and management
Cultivation and restoration
References and notes
- 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.
- Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: P. Adams, Loran C. Anderson, R. F. Doren, D. L. Fichtner, Robert K. Godfrey, Gary R. Knight, R. Kral, Karen MacClendon, Travis MacClendon, and R. A. Norris. States and Counties: Florida: Bay, Calhoun, Franklin, Gadsden, Jackson, Leon, Liberty, Nassau, Okaloosa, and Walton. Georgia: Calhoun and Thomas. Texas: Hardin.