Kageneckia oblonga (also known as bollen) is a species of flowering plant in the family Rosaceae.

In these areas the endangered Chilean Wine Palm, Jubaea chilensis is an associated tree species.

The flowers are unisexual star-shaped and white, solitary or clustered in axillary inflorescences.

The wood is very hard and it is used for elaborating tools, in traditional medicine it is used as emetic and laxative.

Kageneckia in honour of Frederick von Kageneck, Austrian ambassador to Madrid.