"Gayophytum oligospermum F.H. Lewis and Szweykowski" . . "Onagraceae" . "Gayophytum" . . . "Plantae" . "Gayophytum oligospermum" . . . . "Magnoliophyta" . "Magnoliopsida" . . "Myrtales" . . "F.H. Lewis and Szweykowski" . . . . . "Pinegrove Groundsmoke" .