Cape fuchsia, Phygelius 'Funfare Yellow', Several pendulous tubular flowers growing on a plant outdoors, against a blue sky.

Cape fuchsia, Phygelius 'Funfare Yellow', Several pendulous tubular flowers growing on a plant outdoors.

Mother-in-law's tongue, Sansevieria trifasciata, Side view of one flowering stem with pale yellow tubular flowers and leaves behind. Nectar drolets on stem.

Lion's tail, Leonotis leonurus, Side view of tubular orange flowers in a spikey whorl encircling a square stem.

Lion's tail, Leonotis leonurus, Side view of tubular orange flowers in a spikey whorl encircling a square stem.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Isotoma, Isotoma axillaris, One long tubular flower just opening to reveal dark stamen, Petals are white on the outside and violet blue on the front upperside.

Viburnum burkwoodii. Rounded flower head of tubular, pale pink flowers on woody stem with oval, green leaves.

Pendent flower spike of Clock vine or Thunbergia mysorensis with yellow, tubular flowers with recurved, red - brown lobes.