Bignonia Family (Bignoniaceae)
northern catalpa (Catalpa speciosa) -- in June -- Wray, Yuma County, CO white & cream
desert willow (Chilopsis linearis) -- in July -- Bosque del Apache National Wildlife Refuge, NM red & pink
desert willow (Chilopsis linearis) -- in April -- River Road East, Big Bend National Park, Texas red & pink
yellow trumpetbush (Tecoma stans) -- in April -- Big Bend Ranch SP, TX yellow & orange