| Family |
Taxon |
Common Name | Photographs |
| Salicaceae |
Salix pyrifolia Andersson |
balsam willow |
|
| Santalaceae |
Comandra umbellata (L.) Nutt. subsp. umbellata |
bastard-toadflax, false toadflax |
|
| Saxifragaceae |
Chrysosplenium americanum Schwein. ex Hook. |
American golden saxifrage |
|
| Scrophulariaceae |
Aureolaria pedicularia (L.) Raf. |
annual false foxglove, clammy false foxglove |
|
| Scrophulariaceae |
Aureolaria pedicularia (L.) Raf. var. ambigens (Fernald) Farw. |
annual false foxglove, clammy false foxglove, fern-leaf yellow false foxglove |
|
| Scrophulariaceae |
Linaria canadensis (L.) Dum.Cours. var. canadensis |
annual toadflax, blue toadflax, Canada toadflax |
|
| Scrophulariaceae |
Linaria vulgaris Mill. |
butter-and-eggs |
|
| Scrophulariaceae |
Mimulus ringens L. var. ringens |
Allegheny monkey-flower, monkey-flower |
|
| Scrophulariaceae |
Pedicularis canadensis L. subsp. canadensis |
Canadian lousewort, forest lousewort, wood-betony |
|
| Scrophulariaceae |
Penstemon gracilis Nutt. |
lilac penstemon, slender beard-tongue |
|
| Scrophulariaceae |
Penstemon gracilis Nutt. subsp. wisconsinensis (Pennell) Pennell |
Wisconsin beard-tongue, Wisconsin penstemon |
|
| Scrophulariaceae |
Veronica dillenii Crantz |
Dillenius' speedwell |
|
| Scrophulariaceae |
Veronica officinalis L. |
common gypsy-weed, common speedwell, speedwell |
|
| Scrophulariaceae |
Veronica peregrina L. |
neck-weed, purslane speedwell |
|
| Scrophulariaceae |
Veronica peregrina L. subsp. xalapensis (Kunth) Pennell |
hairy purslane speedwell, purslane speedwell |
|
| Scrophulariaceae |
Veronica verna L. |
spring speedwell |
|
| Selaginellaceae |
Selaginella eclipes W.R.Buck |
hidden spike-moss, northern meadow spike-moss |
|
| Selaginellaceae |
Selaginella rupestris (L.) Spring |
dwarf spike-moss, northern selaginella, rock spike-moss |
|
| Solanaceae |
Physalis virginiana Mill. var. virginiana |
lance-leaved ground-cherry, obedient plant, Virginia ground-cherry |
|
| Solanaceae |
Solanum ptychanthum Dunal |
eastern black nightshade, West Indian nightshade |
|
| Sparganiaceae |
Sparganium americanum Nutt. |
American bur-reed |
|
| Sparganiaceae |
Sparganium emersum Rehmann |
narrow-leaved bur-reed |
|
| Staphyleaceae |
Staphylea trifolia L. |
American bladdernut |
|
| Thelypteridaceae |
Thelypteris palustris Schott var. pubescens (Lawson) Fernald |
eastern marsh fern, marsh fern |
|
| Thelypteridaceae |
Thelypteris simulata (Davenp.) Nieuwl. |
bog fern, Massachusetts fern |
|
| Typhaceae |
Typha angustifolia L. |
narrow-leaved cat-tail |
|
| Typhaceae |
Typha X glauca Godr. |
hybrid cat-tail, white cat-tail |
|
| Typhaceae |
Typha latifolia L. |
broad-leaved cat-tail, common cat-tail |
|
| Ulmaceae |
Celtis occidentalis L. |
northern hackberry |
|
| Ulmaceae |
Ulmus pumila L. |
Siberian elm |
|
| Ulmaceae |
Ulmus rubra Muhl. |
red elm, slippery elm |
|
| Urticaceae |
Boehmeria cylindrica (L.) Sw. |
small-spike false nettle |
|
| Verbenaceae |
Verbena hastata L. |
blue vervain, simpler's-joy, swamp verbena |
|
| Verbenaceae |
Verbena stricta Vent. |
hoary verbena, hoary vervain |
|
| Violaceae |
Viola blanda Willd. var. palustriformis A.Gray |
sweet white violet |
|
| Violaceae |
Viola cucullata Aiton |
blue marsh violet, hooded violet, marsh blue violet |
|
| Violaceae |
Viola pedata L. |
bird's-foot violet |
|
| Violaceae |
Viola pedata L. f. rosea Sanders |
bird's-foot violet |
|
| Violaceae |
Viola pubescens Aiton |
yellow forest violet, yellow violet |
|
| Violaceae |
Viola pubescens Aiton var. scabriuscula Schwein. ex Torr. & A.Gray |
smooth yellow violet, yellow forest violet, yellow violet |
|
| Violaceae |
Viola sagittata Aiton |
arrow-leaved violet |
|
| Violaceae |
Viola sagittata Aiton var. sagittata |
arrow-leaved violet |
|
| Violaceae |
Viola sororia Willd. |
door-yard violet, common blue violet, hairy wood violet |
|
| Xyridaceae |
Xyris torta Sm. |
slender yellow-eyed-grass |
|