1 "Leaves and branches alternate" "Dasysphaera alternifolia" 1 "Leaves and branches opposite" 2 2 "Bristles of sterile flowers plumose almost to their tips" "Dasysphaera robecchii" 2 "Bristles of sterile flowers glabrous or with a very few scattered hairs near the base" 3 3 "Tepals 3-4 mm long; filaments gradually expanded towards the base" "Dasysphaera hyposericea" 3 "Tepals 8-10 mm long; filaments linear to the base, abruptly expanded at the point of insertion" "Dasysphaera tomentosa"