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Evaluation of the pawpaw tree, Asimina triloba (Annonaceae), as a commercial source of the pesticidal annonaceous acetogenins.
78 odoratissimus Asimina triloba R Acalymma vittatum (Col.
5% 10% Other 28% 6% The "other" category is comprised of the following 22 species listed in descending order by basal area of seedlings: Prunus serotina, Magnolia acuminata, Asimina triloba, Cornus florida, Nyssa sylvatica, Quercus velutina, Sassafras albidum, Magnolia tripetala, Cercis canadensis, Acer rubrum, Acer saccharum, Fraxinus americana, Carya tomentosa, Quercus rubra, Carpinus caroliniana, Carya ovata, Pinus virginiana, Quercus prinus, Betula lenta, Oxydendron arboreum, Amelanchier arborea, and Carya cordiformis
Also notable as they bloom in the spring are the woody Lindera benzoin (spicebush) and Asimina triloba (pawpaw tree).
saccharinum 0, 0, 0 0, 0, 2 Asimina triloba 3, 4, 4 4, 2, 0 Celtis occidentalis 3, 3, 2 0, 4, 0 Lindera benzoin 2, 2, 1 +, 0, 0 Morus rubra 1, 1, 0 0, 0, 0 Ostrya virginica 0, 1, 0 0, 0, 0 Parthenocissus quinquefolia 0, 1, 0 +, +, + Platanus occidentalis 2, 0, 4 5, 0, 0 Staphylea trifolia 0, 0, 0 1, 0, 0 Toxicodendron radicans 0, 1, 0 0, +, 0 Vitis sp.
saccharinum +, +, + +, 0, 4 Albizzia julibrissin(*) 0, 0, 0 0, +, 0 Alliaria officinalis(*) 5, 5, 3 1, 2, 0 Allium vineale(*) 0, +, 0 0, 0, 0 Arisaema triphyllum 0, 0, 0 0, +, 0 Asimina triloba 1, 2, + 3, 2, + Boehemeria cylindrica 0, +, 0 +, 1, 1 Calystegia sepium 0, 0, 0 0, 0, + Celtis occidentalis +, +, 0 +, +, 0 Dioscorea villosa 0, 0, 0 0, +, 0 Duchesnea indica(*) 0, 0, + 0, 0, 0 Ellisea nyctelea 1, +, 0 0, 0, 0 Fraxinus pennsylvanica 0, 0, 0 0, 0, + Galium aparine 1, 1, + 0, 0, 0 Geum canadense 0, 0, 0 0, +, 0 Glecoma hederacea(*) 5, 4, 5 0, +, 0 Hedera helix(*) 0, 0, 0 1, 1, 0 Hydrophyllum canadense 1, 3, 3 +, 0, 0 H.
Asimina triloba (pawpaw) and Nyssa sylvatica (black gum) (mostly root sprouts), dominated the seedling layer, while pawpaw and sugar maple were the common saplings (Table 2).
Shrub and understory species include Acer negundo, Aesculus glabra, Asimina triloba (which occurred in large-sized stands primarily on the west side of the woods), Carpinus caroliniana, Cephalanthus occidentalis (bordering wet areas), Cornus drummondii (especially along the edge), Crataegus spp.