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Key to Clitoria

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1 Leaves 5-7-foliolate; standard 3.5-4 cm long
1 Leaves 3-foliolate; standard 4.5-5.5 cm long.
..2 Leaflets 3.0-4.5× as long as wide, obtuse at the tip; calyx tube of chasmogamous flowers 7-10 mm long, usually purplish; legume on a stipe 15-20 mm long, well exserted from the calyx; erect or ascending herb, 2-6 dm tall; [peninsular FL]
..2 Leaflets 1.7-3.5× as long as wide, slightly acute at the tip; calyx tube of chasmogamous flowers 10-13 mm long, green; legume on a stipe 10-15 mm long, included or slightly exserted from the calyx; ascending herb, becoming a sprawling, trailing, or twining herbaceous vine; [collectively widespread in our area].
....3 Leaves glabrescent beneath, at maturity the hairs confined or very nearly so to the major veins
....3 Leaves moderately to densely pubescent beneath, the hairs erect and pilose to suberect and sericeous, at maturity occurring across the leaf surface; [endemic to FL peninsula]
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