Leaves imparipinnate with 3-many pairs of leaflets, pulvinate; stipules small; leaflets frequently mucronate, exstipellate
Flowers yellow in few- to many-flowered, axillary or terminal racemes, frequently in panicles
Calyx with campanulate tube, 5-lobed, with 2 upper lobes smallest and partly connate
Petals: vexillum clawed, with claw deeply channelled and limb reflexed and bilobed; wings clawed, oblong, obtuse; keel clawed, obtuse
Stamens free or connate at base; anthers small, oblong
Ovary stalked, several-ovuled; style arcuate, with small, capitate stigma
Pod usually broadly linear, sometimes with a narrow wing on ventral suture, tipped with the remains of style
Seeds compressed, ovate-oblong, with small hilum near the narrow end; radicle incurved
x = 9
Nomenclature:
Calpurnia E.Mey.
Meyer: 2 (1836)
Harvey: 266 (1862)
Phillips: 475 (1917)
Brummitt: 123 (1967)
Polhill: 46 (1971)
Distribution & Notes:
Global: Species ± 16, Africa
Southern Africa: Species ± 7, the four northern provinces, Swaziland, KwaZulu-Natal and Eastern Cape
References:
BRUMMITT, R.K. 1967. Calpurnia aurea (Ait.) Benth., a Cape species in Tropical Africa and Southern India. Kirkia 6
HARVEY, W.H. 1862. Leguminosae. Flora capensis 2
MEYER, E.H.F. 1836. Commentariorum de plantis Africae australioris 2. Voss, Leipzig
PHILLIPS, E.P. 1917. The Genus Calpurnia, E.Mey. (Leguminosae). Annals of the South African Museum 9
POLHILL, R.M. 1971. Flora of tropical East Africa. Leguminosae (part 3). Papilionoideae
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