| 1 | Corolla, even in bud, ± densely greyish puberulous in the distal part |
| 1' | Corolla outside glabrous or almost so, even in bud |
| 2 | Glomerules in bud either without projecting setiform hairs, or hairs few and short (to c. 0.7 mm). Stipules 4-8 (rarely 10) mm |
| 2' | Glomerules in bud appearing ± densely brisdy by setiform hairs projecting beyond the corolla for 1-1.5 mm. Stipules 8-14 mm |
