- Plants
- ›Vascular Plants
- ›flowering plants
- ›Dicots
- ›myrtles, evening primroses, and allies
- ›evening primrose family
Primrose-willows
Ludwigia
Ludwigia (primrose-willow, water-purslane, or water-primrose) is a genus of about 82 species of aquatic plants with a cosmopolitan but mainly tropical distribution.
Currently (2023), there is much debate among botanists and plant taxonomists as to the classification of many Ludwigia species. Botanists from the US Department of Agriculture are currently doing genetic analyses on plants from the Western US and South America to better classify members of this genus.
25 branches of this genus, most-observed first
Oligospermum
sectionOligospermum
Macrocarpon
sectionMacrocarpon
Isnardia
sectionIsnardia
Ludwigia
sectionLudwigia
Myrtocarpus
sectionMyrtocarpus
Pterocaulon
sectionPterocaulon
Microcarpium
sectionMicrocarpium
Seminuda
sectionSeminuda
Fissendocarpa
sectionFissendocarpa
Humboldtia
sectionHumboldtia
Caryophylloidea
sectionCaryophylloidea
Nipponia
sectionNipponia
Miquelia
sectionMiquelia
Nematopyxis
sectionNematopyxis
Cryptosperma
sectionCryptosperma
Heterophylla
sectionHeterophylla
Tectiflora
sectionTectiflora
Africana
sectionAfricana
Ludwigia tepicana
speciesLudwigia tepicana
Arborescentes
sectionArborescentes
Cinerascentes
sectionCinerascentes
Amazonia
sectionAmazonia
Prieurea
sectionPrieurea
Brenania
sectionBrenania
Ludwigia humboldtiana
speciesLudwigia humboldtiana
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Ludwigia in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 50339.