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Rose-coloured Weigela Roses Kalmia latifolia Spiraea bumalda anthony waterer Mountain Laurel Crimson SpireaSpiraea tomentosaHardhack F. Producing Yellow Flowers. Until the trees and shrubs pro-ducing yellow flowers are grouped the reader can hardly appreciatehow great is the wealth of this material. The group is divided, as arethe preceding groups in the chapter, into the early-flowering typesand the late-flowering types. a. Early-flowering sorts: Benzoin aestivale Cytisus scoparius |
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