Cryptocarya endiandrifolia, commonly known as narrow-leaved walnut,[1] is a species of flowering plant in the family Lauraceae family and is native to Cape York Peninsula and New Guinea. Its leaves are elliptic to oblong or lance-shaped, the flowers cream-coloured or pale green and unpleasantly perfumed, and the fruit is a spherical to elliptic black drupe.
Cryptocarya endiandrifolia is a tree that typically grows to a height of, its stems usually buttressed and its young growth softly hairy. Its leaves are elliptic to oblong or lance-shaped, long and wide on a petiole long. The flowers are cream-coloured or pale green and unpleasantly perfumed, usually arranged in a panicle longer than the leaves, the perianth tube long and wide and hairy near the tip. The tepals are long and wide, the outer anthers long and about wide, the inner anthers long and about wide. Flowering occurs in November and December, and the fruit is a black, spherical to elliptic drupe long and wide.[2]
Cryptocarya endiandrifolia was first formally described in 1968 by André Joseph Guillaume Henri Kostermans in the journal Reinwardtia from specimens collected by Ruurd Dirk Hoogland near the foothills of the Finisterre Range.[3]
Narrow-leaved walnut grows as an understorey tree in dry rainforest from near Bamaga to the McIlwraith Range on Cape York Peninsula and in New Guinea, at altitudes from sea level to .