| Family |
Taxon |
Common Name | Photographs |
| Pinaceae |
Abies balsamea (L.) Mill. |
balsam fir, Canada balsam |
|
| Aceraceae |
Acer negundo L. |
ash-leaved maple, box elder |
|
| Aceraceae |
Acer negundo L. var. negundo |
box elder |
|
| Aceraceae |
Acer rubrum L. var. rubrum |
red maple |
|
| Aceraceae |
Acer saccharum Marshall var. saccharum |
hard maple, sugar maple |
|
| Aceraceae |
Acer spicatum Lam. |
mountain maple |
|
| Acoraceae |
Acorus calamus L. |
sweet-flag |
|
| Ranunculaceae |
Actaea pachypoda Elliott |
doll's-eyes, white baneberry |
|
| Ranunculaceae |
Actaea rubra (Aiton) Willd. |
red baneberry |
|
| Rosaceae |
Agrimonia striata Michx. |
grooved agrimony, roadside agrimony |
|
| Poaceae |
Agrostis gigantea Roth |
redtop |
|
| Poaceae |
Agrostis scabra Willd. |
rough bent grass, southern hair grass, tickle grass |
|
| Poaceae |
Agrostis stolonifera L. |
creeping bent grass, creeping tickle grass |
|
| Betulaceae |
Alnus incana (L.) Moench subsp. rugosa (Du Roi) R.T.Clausen |
mountain alder, speckled alder, swamp alder |
|
| Betulaceae |
Alnus viridis (Vill.) DC. subsp. crispa (Aiton) Turrill |
American green alder, green alder, mountain alder |
|
| Rosaceae |
Amelanchier laevis Wiegand |
Allegheny serviceberry, Allegheny shadblow, smooth serviceberry |
|
| Rosaceae |
Amelanchier sanguinea (Pursh) DC. var. sanguinea |
low shadblow, New England serviceberry, round-leaved serviceberry |
|
| Poaceae |
Ammophila breviligulata Fernald |
American beach-grass, dune grass, marram grass |
|
| Fabaceae |
Amphicarpaea bracteata (L.) Fernald |
American hog-peanut, hog-peanut |
|
| Asteraceae |
Anaphalis margaritacea (L.) Benth. & Hook.f. |
pearly everlasting, western pearly everlasting |
|
| Ericaceae |
Andromeda glaucophylla Link |
bog-rosemary |
|
| Ranunculaceae |
Anemone quinquefolia L. var. quinquefolia |
nightcaps, wood anemone |
|
| Asteraceae |
Antennaria howellii Greene |
Howell's pussy-toes |
|
| Asteraceae |
Antennaria howellii Greene subsp. neodioica (Greene) R.J.Bayer |
field pussy-toes, Howell's pussy-toes |
|
| Poaceae |
Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp subsp. arcticum (J. Presl) G. Tucker |
northern sweet grass, vanilla grass |
|
| Apocynaceae |
Apocynum androsaemifolium L. |
spreading dogbane |
|
| Brassicaceae |
Arabis hirsuta (L.) Scop. |
hairy rock-cress |
|
| Brassicaceae |
Arabis hirsuta (L.) Scop. var. pycnocarpa (M.Hopkins) Rollins |
cream-flower rock-cress, hairy rock-cress |
|
| Araliaceae |
Aralia hispida Vent. |
bristly sarsaparilla |
|
| Araliaceae |
Aralia nudicaulis L. |
wild sarsaparilla |
|
| Araliaceae |
Aralia racemosa L. |
American spikenard, life-of-man |
|
| Viscaceae |
Arceuthobium pusillum Peck |
eastern dwarf mistletoe |
|
| Asteraceae |
Arctium minus Bernh. |
common burdock, lesser burdock |
|
| Ericaceae |
Arctostaphylos uva-ursi (L.) Spreng. |
bearberry, kinnickinnick |
|
| Orchidaceae |
Arethusa bulbosa L. |
dragon's-mouth, swamp-pink |
|
| Brassicaceae |
Armoracia lacustris (A.Gray) Al-Shehbaz & V.M.Bates |
lake cress |
|
| Asteraceae |
Artemisia campestris L. subsp. caudata (Michx.) H.M.Hall & Clem. |
field sage-wort, field wormwood |
|
| Asclepiadaceae |
Asclepias syriaca L. |
common milkweed, silkweed |
|
| Asteraceae |
Aster ciliolatus Lindl. |
Lindley's aster, northern heart-leaved aster |
|
| Asteraceae |
Aster lanceolatus Willd. |
eastern lined aster, panicled aster, white panicle aster |
|
| Asteraceae |
Aster lanceolatus Willd. var. lanceolatus |
eastern lined aster, marsh aster, panicled aster, white panicle aster |
|
| Asteraceae |
Aster lanceolatus Willd. X A. lateriflorus (L.) Britton |
|
|
| Asteraceae |
Aster lanceolatus Willd. X A. pilosus Willd. |
|
|
| Asteraceae |
Aster lanceolatus Willd. X A. puniceus L. |
|
|
| Asteraceae |
Aster lanceolatus Willd. X A. sagittifolius Wedem. ex Willd. |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton |
calico aster, goblet aster, side-flowering aster |
|
| Asteraceae |
Aster lateriflorus (L.) Britton var. lateriflorus |
calico aster, goblet aster, side-flowering aster |
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. ontarionis Wiegand |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. oolentangiensis Riddell |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. puniceus L. |
|
|