This species, in its typical state, is now in cultivation from seeds collected on Mount Omei (Emei Shan) by Keith Rushforth (KR 173 and 184). It was mentioned briefly on page 746 under R. prattii, which now becomes a subspecies of it:
subsp. prattii (Franch.) Chamberlain – See R. prattii, page 745. The subspecies faberi differs from this only in having smaller leaves with a denser juvenile tomentum (Rev. 2, p. 359).