Found 1,304 species ·
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Cucumis sativus
T1 medium 3,628
Prunella vulgaris
T1 medium 3,531
Acer saccharinum
T1 easy 3,433
Artemisia annua
T1 medium 3,423
Solanum lycopersicum
T1 easy 3,415
Lantana camara
T1 easy 3,344
Liriodendron tulipifera
T1 easy 3,341
Ligustrum sinense
T1 easy 3,274
Dianthus barbatus
T1 easy 3,206
Solidago altissima
T1 medium 3,167
Ilex verticillata
T1 medium 3,137
Hydrangea arborescens
T1 easy 3,127
Nerium oleander
T1 easy 3,122
Campsis radicans
T1 easy 3,101
Persea americana
T1 medium 3,094
Elaeagnus umbellata
T2 easy 3,084
Toxicodendron radicans
T1 easy 3,066
Mandevilla sanderi
T1 easy 3,040
Portulacaria afra
T1 easy 3,031
Impatiens walleriana
T1 easy 2,955
Nandina domestica
T1 medium 2,938
Glechoma hederacea
T1 medium 2,936
Colocasia esculenta
T1 medium 2,935
Rosa chinensis
T1 hard 2,879
Juniperus virginiana
T1 easy 2,879
Catalpa bignonioides
T1 easy 2,878
Rosa multiflora
T1 hard 2,872
Populus deltoides
T1 easy 2,863
Tradescantia spathacea
T1 easy 2,844
Aeonium arboreum
T1 hard 2,807
Prunus persica
T1 medium 2,763
Cucurbita maxima
T1 medium 2,740
Persicaria maculosa
T1 medium 2,695
Rhus typhina
T1 easy 2,689
Fraxinus pennsylvanica
T1 easy 2,645
Sonchus oleraceus
T1 medium 2,633
Ulmus parvifolia
T1 easy 2,603
Kalanchoe daigremontiana
T1 hard 2,592
Euphorbia milii
T1 easy 2,572
Tanacetum parthenium
T1 medium 2,570