1 | Hairs on the branchlets, stipules and leaves aporessed: inner involucral bracts ovate to triangular. |
1' | Hairs on the branchlets, stipules and leaves at least partly patent; inner involucral bracts narrow-triangular to subulate. |
2 | Hairs on the main veins beneath patent. |
2' | Hairs on the main veins beneath partly appressed. |