Mackinder, B. et al. (2001) Papilionoideae Flora Zambesiaca 3(5)
Climbing or prostrate, rarely erect, herbs or subshrubs. Stipules present. Leaves 1-or 3-foliolate; leaflets usually with conspicuous resinous gland-dots beneath. Flowers spreading. Calyx 5-lobed, lobes unequal, the upper pair ± joined. Corolla frequently yellow, lined with brownish-purple. Ovary (1-)2-ovulate. Pods 3-4 × as long as broad, almost circular to narrowly oblong, flattened, often falcate, frequently glandular and velvety. Seeds flattened-spherical or subreniform; funicle inserted at middle of the circular hilum. Derivation of name: Gk. rhynchos, a beak, snout or horn, referring to the keel of the flowers Worldwide: c. 300 species, tropics Zimbabwe: 34 taxa. Insects associated with this genus:
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| Species | FZ divisions | Content |
| albissima Gand. | E,S | |
| buchananii Harms | N,C,E | Description |
| caribaea (Jacq.) DC. var. caribaea | W,E,S | |
| castroi Baker f. | C | |
| chimanimaniensis Verdc. [NrEnd] | E | Description, Image |
| clivorum S. Moore subsp. pycnantha (Harms) Verdc. | W,E,S | Description, Image |
| densiflora (Roth) DC. subsp. chrysadenia (Taub.) Verdc. | W,C,S | |
| divaricata Baker | E,S | Description, Image |
| fleckii Schinz | W,S | |
| goetzei Harms | E | |
| hirta (Andrews) Meikle & Verdc. | C,E,S | Description, Image |
| holosericea Schinz | W | |
| holstii Harms | E | |
| insignis (O. Hoffm) R.E. Fr. | N,C,E | Description, Image |
| luteola (Hiern) K. Schum. var. luteola | E | |
| malacophylla (Spreng.) Bojer | S | |
| minima (L.) DC. [Agg] | N,W,C,E,S | Description, Image |
| minima (L.) DC. var. prostrata (Harv.) Meikle | N,W,C,E,S | |
| minima (L.) DC. var. minima | N,W,C,E,S | |
| monophylla Schltr. | N,C,E,S | Description, Image |
| nervosa Benth. ex Harv. | C | |
| nyasica Baker | N,W,C | Description, Image |
| procurrens (Hiern) K. Schum. subsp. floribunda (Baker) Verdc. | N,W,C,S | |
| resinosa (Hochst. ex A. Rich.) Baker | N,W,C,E,S | Description, Image |
| sordida (E. Mey.) Schinz | E,S | |
| stipata Meikle [NrEnd] [LR-nt] | E | Description, Image |
| stipitata Verdc. | N,W | Description, Image |
| sublobata (Schumach. & Thonn.) Meikle | N,W,E,S | Description, Image |
| swynnertonii Baker f. [NrEnd] | E | |
| totta (Thunb.) DC. var. totta | W,E | |
| totta (Thunb.) DC. var. elongatifolia Verdc. [End] [DD] | N,C,E,S | Description, Image |
| totta (Thunb.) DC. var. fenchelii Schinz | N,W,C,E,S | Description |
| tricuspidata Baker f. subsp. tricuspidata | C,E | |
| wildii Verdc. | N | Image |