Capsella bursa-pastoris
Shepherd's-purse
Carum carvi
Caraway
Catapodium rigidum
Fern-grass
Centaurea cyanus
Cornflower
Centranthus ruber
Red Valerian
Cerastium tomentosum
Snow-in-summer
Chaenorhinum minus
Small Toadflax
Chamaecyparis lawsoniana
Lawson's Cypress
Chamaenerion angustifolium
Rosebay Willowherb
Claytonia perfoliata
Springbeauty
Coriandrum sativum
Coriander
Cotoneaster horizontalis
Wall Cotoneaster
Cotoneaster integrifolius
Entire-leaved Cotoneaster
Crepis vesicaria
Beaked Hawk's-beard
Crocosmia x crocosmiiflora
Montbretia
Cymbalaria muralis
Ivy-leaved Toadflax
Datura stramonium
Thorn-apple
Digitaria ischaemum
Smooth Finger-grass
Diplotaxis muralis
Annual Wall-rocket
Dipsacus fullonum
Wild Teasel
Epilobium montanum
Broad-leaved Willowherb
Epilobium tetragonum
Square-stalked Willowherb
Eranthis hyemalis
Winter Aconite
Erigeron canadensis
Canadian Fleabane