Duvalia is a plant genus in the tribe Stapeliae, milkweed subfamily Asclepiadoideae, in the family Apocynaceae (dogbane). The genus was first described in 1812, named after the French physician and botanist Henri-Auguste Duval (1777-1814). It can be found on the Arabian peninsula, in tropical Africa and South Africa.
The Duvalia species are succulent, perennial plants with low, planar growth. The shoots are clavate, cylindrical to spherical, in cross-section four-, five-or six-edged, and to about 10 inches long. They can range from green, gray to mottled reddish in color. The flower stems are long and bare. The hermaphroditic flowers measure 1-5 cm in diameter, and have five parts. The crown is yellow ocher, brown, red to dark purple. The five corolla lobes are flat or folded along the middle nerve.
Duvalia anemoniflora (Deflers) R.A. Dyer & Lavranos - Arabia
Duvalia angustiloba N.E.Br. - South Africa
Duvalia caespitosa (Masson) Haw. - South Africa
Duvalia corderoyi (Hook.f.) N.E.Br. - South Africa
duvalia dioscoridis
Duvalia eilensis Lavranos - Somalia
Duvalia elegans (Masson) Haw. - South Africa
Duvalia galgallensis Lavranos - Somalia
Duvalia gracilis Meve - Cape Province
Duvalia immaculata (C.A.Lückh.) M.B.Bayer ex L.C.Leach
Duvalia maculata N.E.Br. - South Africa
Duvalia modesta N.E.Br. - South Africa
Duvalia parviflora N.E.Br. - Cape Province
Duvalia pillansii N.E.Br. - Cape Province
Duvalia polita N.E.Br. - South Africa
Duvalia pubescens N.E.Br. - Cape Province
Duvalia somalensis Lavranos - Somalia
Duvalia sulcata N.E.Br. - Arabia
Duvalia velutina Lavranos - Saudi Arabia
Duvalia vestita'' Meve - Cape Province
Postovi
