Wimmeria mexicana is a large shrub or small tree, often reaching 8 metres (26 ft) in height, that is common in the Southeastern United States and in regions of Mexico, including the states of Oaxaca, Chihuahua, and central to eastern Sonora.

The leaves, exstipulate and 2–6 cm in length, alternate and vary in shape between lanceolate, elliptic, and obovate.

Flowers tend to be 7.5–8 mm wide, white to cream colored, bisexual, with 5 petals on 5 sepals, and arranged in axillary cyme.

[2] Wimmeria mexicana mass flowers around July to October, or often after heavy Autumn rain, attracting a large number of insects, particularly bees and flies.

Also, the Guarijío prepare herbal tea, malo en el cuerpo (pain in the body), from W. mexicana, chamomile, and cilantro.