Poppy Chubb-Baggins
From Tolkien Gateway
Poppy Chubb-Baggins was the daughter, and only child, of Falco Chubb-Baggins. She married Filibert Bolger, and thereby brought the family name of Chubb-Baggins (derived from her grandparents Chica Chubb and Bingo Baggins) to an end. Her grandfather Bingo was an uncle of Bilbo Baggins, making Poppy Bilbo's first cousin, once removed.
Etymology
Poppy is a common family of annual and perennial plants. The name derives from Old English popæg, ultimately from Latin papaver.