INDEX 



Abele 29 

 Abies 6 

 Abutilon 61 

 Acacia, False 55 

 Acalypha 57 

 Acer 59 

 Aceraceae 59 

 Achillea 85 

 Acnida 37 

 Acorus 23 

 Actaea 40 

 Adder's Mouth 29 



Green 29 

 Adder's Tongue 4 



Family 4 



Yellow 25 

 Adiantum 1 

 Adlumia 44 

 Aesculus 59 

 Agastache 75 

 Agrimonia 49 

 Agrimony 49 



Tall Hairy 49 



Woodland 49 

 Agropyron 9 

 Agrostemma 38 

 Agrostis 10 

 Ague-weed 72 

 Aizoaceae 38 

 Ajuga 75 

 Alder 31 



Black 58 



Downy Green 31 



Hoary 31 



Smooth 82 



Speckled 31 

 Alder-leaved Buck- 

 thorn 60 

 Alfalfa 54 

 Alisma 9 

 Alismaceae 9 

 Allegheny Vine 44 

 Allium 25 

 Allspice, Wild 43 

 Alnus 31 

 Alopecurus 10 

 Alsike Clover 55 

 Alternate-leaved Dog- 

 wood 68 



Alyssum, Hoary 45 



Sweet 46 

 Amaranth 37 



Family 37 



Green 37 



Prostrate 37 



Thorny 37 

 Amaranthaceae 37 

 Amaranthus 37 

 Ambrosia 85 

 Amelanchier 49 

 American Aspen 30 



Beech 32 



Bladder Nut 59 



Brooklime 80 



Cranberry 71 



Elm 34 



Fly Honeysuckle 82 



Germander 78 



Hop Hornbeam 32 



Hornbeam 32 



Larch 6 



Mountain Ash 51 



Orpine 48 



Pennyroyal 76 



White Hellebore 26 



Yew 6 

 Amphicarpa 53 

 Anacardiaceae 58 

 Anagallis 71 

 Anaphalis 85 

 Andromeda 69 

 Andropogon 10 

 Anemone 41 



Cut-leaved 41 



Long-fruited 41 



Round-headed 41 



Tall 41 



Wood 41 

 Angelica 66 

 Antennaria 85 

 Anthemis 85 

 Anthoxanthum 10 

 Apios 53 

 Apocynaceae 72 

 Apocynum 72 

 Appalachian Cherry 51 

 Apple 51 



of Peru 78 



Purple Thorn 78 



Thorn 78 

 Aquifoliaceae 58 

 Aquilegia 41 

 Arabis 44 

 Araceae 23 

 Aralia 66 

 Araliaceae 66 

 Arbor Vitae 7 

 Arbutus, Trailing 69 

 Arceuthobium 34 

 Arctium 86 

 Arctostaphylos 69 

 Arenaria 38 

 Arethusa 27 

 Arisaema 23 

 Aristida 10 

 Aristolochiaceae 34 

 Aromatic Winter- 

 green 69 

 Arrhenatherum 10 

 Arrow Grass Family 9 

 Arrow-head 9 

 Arrow-leaved Tear- • 



thumb 36 

 Arrow-wood 83 



Downy 83 



Maple-leaved 83 



Toothed 83 

 Artemisia 86 

 Artichoke, Jerusa- 

 lem 89 

 Arum, Dragon 23 



Family 23 



Water 23 

 Asarabacca 34 

 Asarum 34 

 Asclepiadaceae 73 

 Asclepias 73 

 Ash 72 



American Moun- 

 tain 51 



Black 72 



European Moun- 

 tain 51 



Green 72 



Northern Prickly 56 



Prickly 56 



Red 72 



