Campsis grandiflora: leaflets 7-9; glabrous beneath; 4-7 cm long, paler green; calyx 5-lobed to middle; flowers orange to scarlet, corolla tube nearly one and half times as long as calyx, limb nearly 5-6 cm across; capsule 10-15 cm long, obtuse at apex, without beak.
Campsis radicans: leaflets 9-11, pubescent beneath especially along midreib and main veins, dark green above; calyx shortly 5-lobed, lobes less than 1/3 the tube; flowers orange with scarlet limb, 2-3 times as long as calyx, usually less than 4 cm across; capsule cylindric-oblong, 7-12 cm long, keeled along sutures, beaked at apex.
Campsis x tagliabuana: leaflets 7-11 (-13), glabrous beneath; calyx parted up to middle; flowers orange to scarlet; corolla tube 2-3 times longer than calyx, limb 5-8 cm across; sterile flowers fall off when mature, fruits not produced.
Floriculture in India By Gurcharan Singh Randhawa, Amitabha Mukhopadhyay (1986)-
grandiflora (Thunb.) K.Schum.
radicans (Linn.) Seem.
Campsis (Bignoniaceae) page with images of species in efloraofindia : 1 post by 1 author.
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