Macfadyena unguis-cati (L.) A. Gentry, syn. Doxantha unguis-cati (L.) Miers (Bignoniaceae) Cat’s Claw A very rampant climber with a pair of thin leaflets, and with a cat’s-claw-like trifid tendril and large bright yellow solitary flowers, native of Mexico down to Argentina and across the West Indies, found growing in open forest and scrub, generally flowering in spring and, but also less freely, in autumn. Climber to 6m or more, rooting at the nodes and forming tubers; often festooning large trees. Leaflets 5–16cm, deciduous in cold areas. Flowers 6–9cm across, striped orange in the throat. Capsules to 70cm long. Min. -5°C. Best on a west wall in borderline areas. Z9.