Marts 2023
Rhododendron baihuaense
Rhododendron baileyi Balf.f.
Rhododendron bainbridgeanum Tagg &Forrest
Rhododendron bakeri (W.P.Lemmon & McKay) H.H.Hume
Rhododendron balangense W.P .Fang
Rhododendron balfourianum Diels
Rhododendron balfourianum var. aganniphoides
Rhododendron barbatum G .Don
Rhododendron barkamense D.F .Chamb.
Rhododendron basilicum Balf.f. & W.W.Sm.
Rhododendron batemanii
Rhododendron bathyphyllum Balf.f. & Forrest
Rhododendron beanianum, DNR24-100, Cowan
Rhododendron beesianum Diels
Rhododendron beesianum Diels
Rhododendron benhallii Craven
Rhododendron bhutanense D.G.Long & Bowes Lyon
Rhododendron bodinieri H .Lév.
Rhododendron bonvalotii Franch.
Rhododendron boothii Nutt.
Rhododendron brachyanthum Franch.
Rhododendron brachyanthum ssp. hyperlepidotum
Rhododendron brachycarpum D.Don ex G.Don
Rhododendron brachycarpum ssp. fauriei
Rhododendron brachycarpum roseum
Rhododendron brachycarpum ssp. tigerstedtii
Rhododendron brachycarpum ssp. ulleungense
Rhododendron brachypodum W.P.Fang & P.S.Liu
Rhododendron bracteatum Rehder & E.H.Wilson
Rhododendron brevinerve Chun & Fang
Rhododendron breviperulatum Hayata
Rhododendron bulu Hutch.
Rhododendron bureavii Franch.
Rhododendron bureavii aff. JN
Rhododendron bureaviodes Cox
Rhododendron burjaticum Malyschev
Rhododendron burmanicum Hutch.