Annual or perennial herbs or undershrubs, sometimes prostrate, often associated with water
Leaves
opposite or alternate, usually entire; stipules present, often much reduced
Flowers
regular, borne in axils of reduced upper leaves, their opening not highly synchronised
Sepals
3-7, persistent after petals have fallen; floral tube 0
Petals
as many as sepals or 0, yellow, usually entire
Stamens
as many as or twice as many as sepals; anthers ovoid or oblong; pollen shed in tetrads or singly
Ovary
with many pluriseriate or uniseriate ovules in each locule; stigma entire
Capsule
terete or 4- or 5-ribbed, -angled, or -winged, irregularly loculicidal
Seeds
ellipsoid, lacking hairs, free or embedded in endocarp at maturity, light brown
x = 8 (polyploidy)
Nomenclature:
Ludwigia
L.
Linnaeus: 118 (1753)
Harvey: 504 (1862)
Raven: 327 (1963)
Raven: 333 (1978)
Goldblatt & Raven: 149 (1997)
Jussiaea
L.
Linnaeus: 388 (1753)
Harvey: 504 (1862)
Distribution & Notes:
Global
: Species ± 85, worldwide, mainly South America, relatively few in Africa
Southern Africa
: Species 7, in Namibia, Botswana, Northern Province, North-West, Gauteng, Mpumalanga, Swaziland, Free State, KwaZulu-Natal, Lesotho, Western and Eastern Cape
LINNAEUS, C. 1753.
Species plantarum
. Laurentius Salvius, Stockholm
RAVEN, P.H. 1963. The Old World species of
Ludwigia
(including
Jussiaea
), with a synopsis of the genus (
Onagraceae
).
Reinwardtia
6
RAVEN, P.H. 1978.
Onagraceae
.
Flora zambesiaca
4
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Welcome to Biodiversity Advisor 2.0!
Biodiversity Advisor, developed by the South African National Biodiversity Institute (SANBI) and its Data Partners, is a system that will provide integrated biodiversity information to a wide range of users who will have access to geospatial data, plant and animal species distribution data, ecosystem-level data, literature, images and metadata.
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