R. hirta

R. hirta may refer to:
 * Rondeletia hirta, a plant species endemic to Jamaica
 * Rudbeckia hirta, the black-eyed Susan, blackiehead, brown Betty, brown Daisy, brown-eyed Susan, a flowering plant species

Synonyms

 * Rhus hirta, synonym for Rhus typhina, the staghorn sumac, a deciduous shrub to small tree species native to eastern North America