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May 8, 2018 5:26 AM CST
|Spiraea japonica var. albiflora and Spiraea japonica are listed as the same plant.
One has a pink flower and the other a white flower
May 8, 2018 6:08 AM CST
That's because var. albiflora is regarded as a synonym:
Typically the white form (alba/album or occasionally albiflora) of a plant is the result of one or two alleles being different from the regular-coloured form (i.e. it is a minor difference that results in the inability to produce a certain pigment). It is no longer considered sufficiently different to warrant a distinct taxon.
Plant Authorities: Catalogue of Life (Species) --- International Cultivar Registration Authorities (Cultivars) --- RHS Orchid Register --- RHS Lilium Register
My Notes: Orchid Genera HTML PDF Excel --- Lilium Traits HTML PDF --- Lilium Species Crosses HTML PDF Excel --- Lilium Species Diagram
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