Indigofera coerulea
Indigofera coerulea Roxb., in Trans. Soc. London Encour. Arts 28: 294 (1811).
Shrubby herb up to 1 m tall; stems, leaf- and inflorescence-rhachides densely appressed silvery pubescent. Leaf-rhachis up to 8 cm long including a petiole of up to 2 cm. Leaflets 5–9(–11), obovate or oblong-obovate, up to 32 x 23 mm, strigulose on both sides or glabrous above. Racemes many-flowered, up to 4 cm long, subsessile. Calyx 1.5 mm long; lobes triangular, about as long as the tube. Standard brownish strigulose outside. Stamens 3–3.5 mm long. Pod c. 15 x 2–3 mm, deflexed, curved, torulose with oblong-elliptic segments, indehiscent, strigulose, 3–4-seeded.
its native range is Mali to SE. Egypt and NE. Tropical Africa and Indian Subcontinent..
The Farasan Archipelago: Farasan AlKabir.