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The North-east-Brazilian Liana. The euphilic flowers of plants in the family Bignoniaceae display a spectrum of adaptive radiations, involving different pollinator groups. Besides melittophily (adaptation to pollination by medium - to large-sized bees), which predominates, flowers are pollinated by hawkmoths and bats.

Each individual plant had a single inflorescence, which extends above the foliage, in the form of a simple, terminal, vertically orientated, many-flowered raceme on a long, bracteose peduncle. The inflorescence structure, with only one or two flowers open at a given time (in the latter case on the same node), indicates continuous flowering over at least several weeks, thus displaying a ‘steady state’ pattern . The flowers, on a stout pedicel (20 mm long), have a 5-dentate tubular calyx. The calyx, the sub-tending bracts and the two prophylls, bear groups of extra floral nectaries (single peltate trichomes). The yellow-colored corolla, measuring 7 mm in length, has a 28mm long and 4mm-wide basal tube that widens rather abruptly into a campanulate limb.

Similar plants:

• Anemopaegma chamberlaynii, Bignonia chamberlaynii (Yellow Trumpet Vine)
• Bignonia capreolata (Crossvine)
• Campsis grandiflora, Bignonia grandiflora, Campsis chinensis (Chinese Trumpet Creeper)
• Clytostoma callistegioides, Bignonia lindleyana (Violet Trumpet Vine, Lavender Trumpet Vine)
• Distictis buccinatoria, Phaedranthus buccinatorious, Bignonia buccinatoria (Mexican Blood Flower, Blood Trumpet Vine)
• Dolichandra unguis-cati, Macfadyena unguis-cati, Doxantha unguis-cati, Bignonia tweediana (Cat's Claw)
• Jacaranda jasminoides, Jacaranda curialis, Bignonia curialis (Maroon jacaranda)
• Mansoa verrucifera, Bignonia verrucifera, Onohualcoa verrucifera (Mansoa)
• Pandorea jasminoides, Bignonia jasminoides, Tecoma jasminoides (Pandora vine, Bower vine, Southern Bell)
• Pauldopia ghorta, Bignonia ghorta (Pauldopia)