Achillea millefolium
Yarrow
Achillea ptarmica
Sneezewort
Achillea x lewisii
Achillea
Acmella caulirhiza
Aaku Mella
Ageratum conyzoides
Billygoat-weed
Ambrosia artemisiifolia
Ragweed
Anaphalis margaritacea
Pearly Everlasting
Antennaria dioica
Mountain Everlasting
Anthemis arvensis
Corn Chamomile
Anthemis cotula
Stinking Chamomile
Arctium lappa
Greater Burdock
Arctium minus
Lesser Burdock
Arctium minus sens. str.
Lesser Burdock
Arctium nemorosum
Wood Burdock
Arctium tomentosum
Woolly Burdock
Artemisia vulgaris
Mugwort
Baltimora recta
Beautyhead
Bellis perennis
Daisy
Bidens cernua
Nodding Bur-marigold
Bidens pilosa
Spanish-needles
Bidens tripartita
Trifid Bur-marigold
Blumea balsamifera
Sambong
Brachyglottis x jubar
Shrub Ragwort
Calendula officinalis
Pot Marigold
Callistephus chinensis
China aster
Carduus crispus
Welted Thistle
Carduus nutans
Musk Thistle
Carduus tenuiflorus
Slender Thistle
Carlina vulgaris
Carline Thistle
Centaurea cyanus
Cornflower
Centaurea debeauxii
Slender Knapweed
Centaurea montana
Perennial Cornflower
Centaurea nigra
Common Knapweed
Centaurea scabiosa
Greater Knapweed
Centratherum punctatum
Brazilian bachelor's button
Chromolaena odorata
Devil Weed
Chrysanthemum indicum
Indian Chrysanthemum
Cichorium intybus
Chicory
Cirsium acaule
Dwarf Thistle
Cirsium arvense
Creeping Thistle
Cirsium dissectum
Meadow Thistle
Cirsium eriophorum
Woolly Thistle
Cirsium heterophyllum
Melancholy Thistle
Cirsium oleraceum
Cabbage Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Coreopsis lanceolata
Lanceleaf Coreopsis
Cosmos caudatus
King's Salad
Cosmos Sulphureus
Sulfur Cosmos
Cota tinctoria
Yellow Chamomile
Crassocephalum crepidioides
Redflower Ragleaf
Crepis biennis
Rough Hawk's-beard
Crepis capillaris
Smooth Hawk's-beard
Crepis foetida
Stinking Hawk's-beard
Crepis vesicaria
Beaked Hawk's-beard
Cyanthillium cinereum
Little Ironweed
Cynara cardunculus
Cardoon
Dahlia (red)
Dahlia (red)
Doronicum pardalianches
Leopard's-bane
Echinacea purpurea
Coneflower
Echinops bannaticus
Blue Globe-thistle
Eclipta prostrata
False Daisy
Elephantopus mollis
Tobacco Weed
Emilia sonchifolia
Lilac Tasselflower
Erechtites valerianifolius
Tropical Burnweed
Erigeron acris
Blue Fleabane
Erigeron canadensis
Canadian Fleabane
Erigeron karvinskia
Erigeron karvinskianus
Mexican Fleabane