Carrot family (Apiaceae) possibly a variety of Queen Anne's Lace. Seen in woods along Brazos River and at local landscape business, Fort Bend County. (They didn't know what it was) Woody trunk, red/purple herbaceous stems. Leaves paired opposite, ovate, serrated, pinnately veined. Small green seed pods form after flower declines.
Location: Richmond, TX, US
Plant Size: Large shrub. Up to 5-6 ft wide. x 6-8 ft.+
Bloom Size: 6-10" x 3-4"
Bloom Color: white