Matelea parvifolia is a species of flowering plant in the family Apocynaceae known by the common names spearleaf .

It is native to the southwestern United States and northern Mexico, where it grows in and on the edges of deserts.

It is a perennial herb with a branching, twining green stem lined sparsely with heart-shaped leaves no more than 2 centimetres (3⁄4 in) long.

The flowers appear in the leaf axils.

They are purplish or brownish green in color with a nub at each inner corner of the corolla lobes.