The leaves of pearl flowers are linear lanceolate, 25 to 40 mm long and 3 to 7 mm wide. The front end of the leaves is gradually longer, and the base is narrow wedge-shaped. The edge of the leaves is sharp serrated from above the middle. The two sides of the leaves are hairless, with feathery veins. The petioles are very short or nearly sessile, 1 to 2 mm long and pubescent.
The flower of pearl flower is umbel without total peduncle. It has 3 to 7 flowers. There are several leaflets clustered at the base. The peduncle is thin and grows about 6 to 10 mm. The diameter of the flower is about 6 to 8 mm. Its calyx tube is bell shaped, with pubescence on the inner side and no hair on the outer side. The sepals are egg shaped triangle or triangle, and the petals are obovate or nearly round, with concave or blunt apex and white.
