Marts 2023
Rhododendron lacteum Franch.
Rhododendron lagopus Nakai
Rhododendron lanatoides D.F.Chamb.
Rhododendron lanatum Hook.f.
Rhododendron lanigerum Tagg
Rhododendron lapponicum, Greenland, Wahlenb.
Rhododendron lapponicum, Norway, Wahlenb.
Rhododendron lasiostylum Hayata
Rhododendron lateriflorum R.C.Fang & A.L.Chang
Rhododendron latoucheae Franch.
Rhododendron laudandum Cowan
Rhododendron ledebourii Pojark.
Rhododendron lepidostylum Balf.f. & Forrest
Rhododendron lepidotum Wall.
Rhododendron lepidotum var. obulatum
Rhododendron leptocarpum Nutt.
Rhododendron leptopeplum Balf.f. & Forrest
Rhododendron leptothrium Balf.f. & Forrest
Rhododendron leucandrum Lév.
Rhododendron leucaspis Tagg
Rhododendron levinei Merr.
Rhododendron liliiflorum H .Lév.
Rhododendron lindleyi T .Moore
Rhododendron lochiae F .Muell.
Rhododendron lochmium Balf.f.
Rhododendron longesquamatum C.K.Schneid.
Rhododendron longipes Rehder & E.H.Wilson
Rhododendron longipes var. chienianum
Rhododendron longistylum Rehder & E.H.Wilson
Rhododendron lopsanguineum aff
Rhododendron lowndesii Davidian
Rhododendron luciferum
Rhododendron ludlowii Cowan
Rhododendron ludwigianum
Rhododendron lukiangense
Rhododendron luteiflorum Davidian
Rhododendron lutescens Franch.
Rhododendron luteum Sweet 64
Rhododendron lyi

Rhododendron ×lysolepis Hutch.