Philenoptera laxiflora, synonym Lonchocarpus laxiflorus, is a species of legume in the family Fabaceae.

[1] The tree grows to 4–8 meters in height, has grey or yellowish bark and compound leaves.

laxiflorus include applying a lotion with a decoction to the skin to treat venereal disease, constipation in children, skin diseases, sterility (insufficient semen).

laxiflorus has been little studied, though many species in the related genus Lonchocarpus contain rotenoids, tannins, flavonoids, and isoflavonoids.

One study extracted several new compounds from the bark: two isoflavanes (lonchocarpane and laxiflorane) and two pterocarpanes (philonopterane and 9-O-methyl derivative).