Answer: buckthorns

AnswerCrossword Clue
buckthornsBUCKTHORN, a shrub of the Rhamnus genus
buckthornsA shrub or small tree of the sapodilla family, with sharp thorns and clusters of small white flowers, commonly found in moist soils of the southern and central US
buckthornsA shrub or small tree of the buckthorn family, typically bearing thorns. Some kinds yield dyes, and others have been used medicinally