| 1 |
Woody climbers |
|
(2) |
| + |
Herbs, prostrate or climbing |
|
(8) |
| |
|
|
|
| 2 (1) |
Leaflets 3 |
|
(3) |
| + |
Leaflets more than 3 |
|
(5) |
| |
|
|
|
| 3 (2) |
Anthers dimorphous (keel exceeding the wing and
vexillum) |
|
Mucuna |
| + |
Anthers uniform |
|
(4) |
| |
|
|
|
| 4 (3) |
Fruit with a wing or rib near the upper suture |
|
Canavalia |
| + |
Fruit without a wing or rib |
|
Pueraria |
| |
|
|
|
| 5 (2) |
Fruit winged on the upper or both the sutures |
|
Derris |
| + |
Fruit not winged |
|
(6) |
| |
|
|
|
| 6 (5) |
Bract up to 2.5 cm long, c. 3.2 broad, reniform |
|
Flemingia |
| + |
Bract not as above |
|
(7) |
| |
|
|
|
| 7 (6) |
Disc absent, ovary stipitate, fruit soon dehiscent |
|
Wisteria |
| + |
Disc present, ovary mostly sessile, fruit tardily
dehiscent |
|
Millettia |
| |
|
|
|
| 8 (1) |
Hairs biramous, stamens apiculate |
|
Indigofera |
| + |
Hairs basifixed, stamens not apiculate |
|
(9) |
| |
|
|
|
| 9 (8) |
Leaf with five leaflets 2 lower leaflets stipular in position |
|
Lotus |
| + |
Leaf not as above |
|
(10) |
| |
|
|
|
| 10 (9) |
seed horse-shoe-shaped, fruit with horse-shoe-
shaped sinuses |
|
Hippocrepis |
| + |
Seed and fruit not as above |
|
(11) |
| |
|
|
|
| 11 (10) |
Fruit spirally twisted |
|
Medicago |
| + |
Fruit not as above |
|
(12) |
| |
|
|
|
| 12 (11) |
Keel mucronate |
|
Oxytropis |
| + |
Keel not mucronate |
|
(13) |
| |
|
|
|
| 13 (12) |
Stamens 9, monadelphous, seed scarlet with
black spot at hilum |
|
Abrus |
| + |
Stamens and seed not as above |
|
(14) |
| |
|
|
|
| 14 (13) |
Calyx obliquely attached to the pedicel |
|
Chesneya |
| + |
Calyx not as above |
|
(15) |
| |
|
|
|
| 15 (14) |
Calyx lobes enlarged, membranous or scarious after flowering, the lowermost the largest, fruit enclosed by the calyx |
|
Paracalyx |
| + |
Calyx not as above |
|
(16) |
| |
|
|
|
| 16 (15) |
Bract up 2.5 cm long, c. 3.2 cm broad, reniform
(trailing under-shrub) |
|
Flemingia |
| + |
Bract not as above |
|
(17) |
| |
|
|
|
| 17 (16) |
Leaf simple |
|
Goniogyna |
| + |
Leaf compound |
|
(18) |
| |
|
|
|
| 18 (17) |
Fruit jointed or marked with transverse lines between seeds |
|
(19) |
| + |
Fruit not as above |
|
(22) |
| |
|
|
|
| 19 (18) |
Leaflets glandular punctate or with scattered resinous dots |
|
(20) |
| + |
Leaflets not glandular punctate and without resinous dots |
|
(21) |
| |
|
|
|
| 20 (19) |
Leaf 2-foliolate |
|
Zornia |
| + |
Leaf 3-foliolate |
|
Atylosia |
| |
|
|
|
| 21 (19) |
Fruit segments terete or sub-terete (rarely
tetragonal |
|
Alysicarpus |
| + |
Fruit segments flat or nearly so |
|
Desmodium |
| |
|
|
|
| 22 (18) |
Leaf paripinnately compound, rachis ending in a
tendril or bristle |
|
(23) |
| + |
Leaf imparipinnately compound or leaf trifoliolate |
|
(26) |
| |
|
|
|
| 23 (22) |
Stipules almost as large as the leaflets |
|
Pisum |
| + |
Stipules considerably smaller than the leaflets |
|
(24) |
| |
|
|
|
| 24 (23) |
Leaflets serrate, style glabrous |
|
Cicer |
| + |
Leaflets not serrate, style usually hairy |
|
(25) |
| |
|
|
|
| 25 (24) |
Staminal tube with a truncate mouth |
|
Lathyrus |
| + |
Staminal tube with oblique mouth |
|
Vicia |
| |
|
|
|
| 26 (22) |
Fruit indehiscent, compressed suborbicular, crested or prickly |
|
Onobrychis |
| + |
Fruit not as above |
|
(27) |
| |
|
|
|
| 27 (26) |
Leaflets more than 3 (serrate) |
|
Cicer |
| + |
Leaflets 3 |
|
(28) |
| |
|
|
|
| 28 (27) |
Anthers dimorphic |
|
(29) |
| + |
Anthers uniform |
|
(31) |
| |
|
|
|
| 29 (28) |
Plant climbing |
|
Teramnus |
| + |
Plant prostrate, not climbing |
|
(30) |
| |
|
|
|
| 30 (29) |
Calyx bilabiate, 2 teeth in the upper lip and 3 in the lower lip |
|
Argyrolobium |
| + |
Calyx 5-lobed, the upper 4 united higher up than the lower lobe |
|
Lotononis |
| |
|
|
|
| 31 (28) |
Leaflets toothed |
|
(32) |
| + |
Leaflets entire or 3-5-lobed). (not toothed) |
|
(33) |
| |
|
|
|
| 32 (31) |
Petals persisting after flowering, the claws of the
wing and keel adnate to the staminal tube; base
of stipules encircling the stem (fruit 1-9-seeded,
straight, short, usually concealed in the persistent
corolla) |
|
Trifolium |
| + |
Petals caducous, not attached to the staminal tube;
base of stipules usually not encircling the stem |
|
Trigonella |
| |
|
|
|
| 33 (31) |
Leaflets gland-dotted below |
|
Rhynchosia |
| + |
Leaflets not gland-dotted below |
|
(34) |
| |
|
|
|
| 34 (33) |
Style beardless |
|
(35) |
| + |
Style bearded below the stigma |
|
(36) |
| |
|
|
|
| 35 (34) |
Style flattened upward, calyx truncate |
|
Dumasia |
| + |
Style filiform, calyx teeth distinct |
|
Shuteria |
| |
|
|
|
| 36 (34) |
Style divided into a thin basal part and a thick
upper part |
|
(37) |
| + |
Style uniformly thick, uniformly thin or tapering, not divided into 2 distinct parts |
|
(39) |
| |
|
|
|
| 37 (36) |
Style with thickened part (and keel) twisted through
more than 360º (stigma terminal but not penicillate);
vexillum mostly without appendages |
|
Phaseolus |
| + |
Style with thickened part twisted through no more
than 260º, usually up to 180º |
|
(38) |
| |
|
|
|
| 38 (37) |
Thickened part of the style abruptly curved through
90º just above its junction with the tenuous part, narrowed and slightly curved towards the apex, resembling a squarish hook |
|
Macroptilium |
| + |
Thickened part of the style not as above; style with a ribbon-like portion and variously curved, mostly with thick part barbate |
|
Vigna |
| |
|
|
|
| 39 (36) |
Vexillum without appendages |
|
Clitoria |
| + |
Vexillum with distinct appendages |
|
(40) |
| |
|
|
|
| 40 (39) |
Style distinctly thickened, conspicuous; vexillum
mostly purple, with distinct appendages near the base |
|
Lablab |
| + |
Style not distinctly thickened, often short and
inconspicuous, vexillum with 2 long linear lamelliform appendages |
|
Macrotyloma |
