Hoya carnosa, the porcelainflower or wax plant, is an Asclepiad species of flowering plant in the dogbane family Apocynaceae. It is one of the many species of Hoya that are native to Eastern Asia and Australia. It is a common house plant grown for its attractive waxy foliage, and sweetly scented flowers. It is grown well in pots and hanging baskets.
Hoya carnosa has been in cultivation for more than 200 years and has given rise to many cultivars that vary in foliage form or flower color. In cultivation in the UK it has gained the Royal Horticultural Society’s Award of Garden Merit.
Hoya carnosa makes faintly succulent shoots with smooth, pale gray, and bare surfaces that writhe and climb. The shoots are soft at first, but lignified later. The perennial leaves are stalked with about 1 to 1.5 cm long stems. The blade is wide oval to longitudinal oval or heart-shaped. The leaves are slightly succulent, fleshy with a waxy glossy surface. The stem is up to about 10 cm long. The leaves, ovate or elliptical, are 3-5 cm wide and 3.5-13 cm long, with a petiole of about 1-1.5 cm. The intersteaminal side lobes are pointed oval to lanceolate, the top is convex. The outer end is white, the inner end dyed red. The spindle-shaped fruits measure 6 to 10 × 0.5 to 1.5 cm.
Give credit where credit is due: Wikipedia 2020