This attractive and easy to recognize species is only known from Tanjana Vohimena (Cap Ste. Marie), Madagascar’s southernmost point.
It grows here in full sunshine or partial shade in xerophytic bush on limestone, exposed to strong and almost continuous winds.
The plants are creeping with raised tips or climbing, with branches 20-25 cm long (up to 50 cm when supported by bushes).
When young, the leaves are arranged in two vertical rows on opposite sides of the stem (spiralling with age); they are horizontally spreading but curved back in the upper third, 6-10 cm long and 0.7-0.9 cm wide.
The scarlet to yellow flowers are to 2.2 cm long.
The last two pictures were taken in cultivation (scans from old slides).
