This member of the Cucurbitaceae family was described by Monique Keraudren in 1960. It is found on Madagascar, growing epiphytic or terrestrial with some water and lots of sun. It will form an underground caudex which can get twelve centimetres in diameter. The grey stems will reach for 25 centimetres. The flowers are orange and the small fruits dark orange to red. It can be reproduced both by seeds and cuttings. The genera is n amed after A. Seyrig, a French entomologist. The species is named after Henri Humbert, a 20th century French Professor at the University of Algiers, botanist and plant collector in Madagascar.

