1、 Leaf difference

The leaves of the horned stem Wild Peony are single leaf opposite, with 3 to 5 basal veins, faintly pinnate veins and green leaves

The leaves of Brazilian Wild Peony are leathery, lanceolate and ovate, the top of the leaves is gradually sharp, the leaf base is wedge-shaped, about 3 to 7 cm long and about 1.5 to 3 cm wide, and the leaf surface is smooth and hairless

2、 Flower difference

Horned stem wild peony flowers are bisexual flowers, usually 4 to 5, forming cymes, umbels or corymbs, or forming panicles or scorpion cymes from these inflorescences. The petals are gorgeous, usually purplish red

Brazilian wild peony grows umbels with 3 to 5 flowers. Each flower has 5 petals. The petals are purple and the top is round and blunt