Agalinis gattingeri, common name roundstem false foxglove, is an annual hemiparasitic forb measuring between 10.5 and 60.5 cm in height. It is an upright herb with many or few branches on a slender stem, and narrow leaves measuring 10 to 34 mm in length by 0.4 to 1 mm in width. It has pinkish, tubular flowers, blooming through late summer and fall, that are 7- 30 mm in length with numerous red spots and two yellow lines on the lower lip. Single flowers often arise terminally on branches rather than on the stem. Seed capsules are rounded, with numerous yellow to tan seeds that measure 0.5 to 1.2 mm in length.