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Camptotheca acuminata
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Canna indica ‚Stuttgart‘
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Cardamine trifoliata
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Cardamine waldsteinii
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Cardiocrinum giganteum
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Carex comans (albula) ’Frosted Curls’
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Carex foliosissima ’Icedance’
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Carex morrowii ’Variegata’
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Carex muskingumensis ’Little Midge’
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Carex ornithopoda ’Variegata’
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Carex oshimensis ’Everest’
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Carex pendula?
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Carex testacea
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Carpinus fangiana
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Carpinus japonica ’Chinese Lantern’
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Carpinus polyneura
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Carpinus rankanensis
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Carya illinoiensis
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Carya ovata
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Carya tomentosa
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Caryopteris clandonensis
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Caryopteris clandonensis ’Dark Night’
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Caryopteris clandonensis ’Grand Bleu’
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Caryopteris divaricata ‚Pink Form‘
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Caryopteris x clandonensis ‚Summer Sorbet‘
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Cassia hebecarpa
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Castanea sativa
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Catalpa bignonioides
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Catalpa erubens ‚Purpurea‘
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Catalpa fargesii var. duclouxii
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Catalpa speciosa
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Caulophyllum thalictroides
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Cautleya spicata ‚Arun Flame‘ (HWJK 2172)
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Ceanothus ’Gloire de Versailles’
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Ceanothus pallidus ’Marie Simon’
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Ceanothus thyrsiflorus repens
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Cedrus deodara
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Cedrus libani
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Celtis choseniana
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Cenolophium denudatum
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Centaurea dealbata ‚Walter Peters‘
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Centaurea montana ’Black Sprite’
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Centaurea montana ’Purple Heart’
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Centranthus ruber
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Centranthus ruber ‚Albus‘
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Cephalanthus occidentalis
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Cephalaria gigantea
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Cephalaria leucantha ’Villa Talla’
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Cephalotaxus harringtonia
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Cercidiphyllum ’Lisa Ann’