H. aspera

H. aspera may refer to:
 * Hibbertia aspera, the rough Guinea flower, a shrub species native to Australia
 * Hydrangea aspera, a shrub species native to the region between the Himalaya, across southern China to Taiwan
 * Hyphodontia aspera, a fungal plant pathogen species
 * Hypolepis aspera, a fern species in the genus Hypolepis