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Pakistan | Family List | Papilionaceae

Lotus Linn., Sp. Pl. 773. 1753. Gen. Pl. ed. 5.338. 1754; Boiss., Fl. Or. 2:163. 1872; Baker in Hook. f., Fl. Brit. Ind. 2:91. 1876; Ali in Pak. J. Bot. 3:27. 1972 (for 1971).

Annual or perennial, herbs or semishrubs. Leaf pinnately compound; leaflets 5, 3 at the apex and 2 at the base resembling stipules, or the basal leaflets absent, entire. Stipules absent or represented by glands or minute, deciduous. Inflorescence an axillary pedunculate or almost sessile umbel, subtended by 1-3 leafy bracts or flower solitary axillary. Calyx tubular, bilabiate. Corolla yellow, pinkish, red, purple or white, free from stamens, keel pointed or beaked. Stamens diadelphous, 9+1, alternate filaments dilated at the apex. Fruit dehiscent, generally many seeded.

A genus with 60-100 species, most numerous around the Mediterranean, represented in Pakistan by 4 species.

1 Fruit on pedunculate infructescence, peduncle more than 5 mm long   (3)
+ Fruits sessile in the leaf axils or peduncle less than 5 mm long   (2)
2 (1) Calyx 5-7 mm long, leaflets pilose on both sides or glabrous obove, pilose below; hairs long, spreading, leaflets 3-5 per leaf, apparently arising form the same point (rachis absent)   Lotus garcinii
+ Calyx 3-4 mm long, leaflets glabrous above, sparingly pilose on the midrib and margin below; leaflets not arising form the same point, upper leaflets born on an obvious rachis   Lotus schimperi
3 (1) Basal leaflets resembling stipules present; peduncle longer than 2.5 cm   (4)
+ Basal leaflets resembling stipules absent, peduncle 2.5 cm or less long   Lotus makranicus
4 (3) Plants glabrous to moderately hairy; leaflets ± broadly obovate, obtuse or acute; flowers up to 10(-18) mm long   Lotus corniculatus var. corniculatus
+ Plants glabrous or slightly hairy above; leaflets narrowly obovate or oblong-obovate to linear-lanceolate, at least the upper ± acuminate, flowers up to 12 mm long   Lotus corniculatus var. tenuifolius

Lower Taxa

Related Synonym(s):


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