Synonyms
Lobelia × gerardii Sauv.
Lobelia × speciosa var. alba T.Moore
Lobelia × gerardii var. lugdunensis L.H.Bailey
Rapuntium × speciosum (Sweet) C.Presl
Lobelia siphilitica var. hybrida Hook.
Lobelia × nova De Jonghe
Lobelia cardinalis var. milleri D.Don
Lobelia × speciosa var. occidentalis Bowden
Lobelia × formosa De Jonghe
Lobelia siphilitica var. speciosa (Sweet) Steud.
Lobelia × speciosa var. schneckii Bowden
Lobelia × rivoirei Bain
Lobelia × milleri Paxton
Lobelia siphilitica var. milleri (Paxton) Steud.
Lobelia siphilitica f. hybrida (Hook.) Voss
Lobelia cardinalis f. milleri (D.Don) Voss
Lobelia × makoyi De Jonghe