Arnold Arboretum:
Nymphaea thermarum
Arnold Arboretum:
Aquilegia x caerulea 'origami’
Arnold Arboretum:
Viburnum lantanoides
Arnold Arboretum:
Quercus alba
Arnold Arboretum:
Acer rubrum
Arnold Arboretum:
Quercus alba
Arnold Arboretum:
Corylus cornuta
Arnold Arboretum:
Betula alleghaniensis
Arnold Arboretum:
Chara
Arnold Arboretum:
diploid-tetraploid
Arnold Arboretum:
Leaf morphology in Brassica
Arnold Arboretum:
Brassica
Arnold Arboretum:
Weld Hill Common Garden
Arnold Arboretum:
Ginkgo biloba
Arnold Arboretum:
Pseudolarix
Arnold Arboretum:
Cephalotaxus koreana
Arnold Arboretum:
Cryptomeria japonica
Arnold Arboretum:
Cryptomeria japonica
Arnold Arboretum:
Fagus grandifolia
Arnold Arboretum:
Kalmia latifolia
Arnold Arboretum:
Metasequoia glyptostroboides
Arnold Arboretum:
Prunus incisa
Arnold Arboretum:
Campsis radicans
Arnold Arboretum:
Diospyros virginiana
Arnold Arboretum:
Magnolia virginiana 'Satellite'
Arnold Arboretum:
Magnolia virginiana 'Satellite'
Arnold Arboretum:
Magnolia virginiana 'Satellite'