[2][3] Anterrhinum coulterianum is a host species for the Edith's checkerspot butterfly.

[4] It is native to southern California and Baja California, where it grows in desert shrublands and in the coastal hills and mountains, especially in areas that have recently burned.

Sairocarpus coulterianus is an annual herb producing an erect stem which often clings to objects or other plants for support.

The top of the mostly naked stem is occupied by a raceme inflorescence of white snapdragon flowers, which are often tinted with lavender or pink, especially when newly opened.

Media related to Antirrhinum coulterianum at Wikimedia Commons