501. Variable Panicgrass
Panicum commutatum
502. Interrupted Fern
Claytosmunda claytoniana
503. Western Brackenfern
Pteridium aquilinum subsp. pseudocaudatum
504. Small Venus’ Looking-Glass
Triodanis biflora
505. Waterthread Pondweed
Potamogeton diversifolius
506. Glade Fern
Homalosorus pycnocarpos
507. Bare-Stemmed Tick-Trefoil
Hylodesmum nudiflorum
508. Whorled Milkwort
Polygala verticillata
509. Potato Dwarfdandelion
Krigia dandelion
510. Violet Lespedeza
Lespedeza violacea
511. Marsh Seedbox
Ludwigia palustris
512. Philadelphia Fleabane
Erigeron philadelphicus
513. False Daisy
Eclipta prostrata
514. False Nutsedge
Cyperus strigosus
515. Southern Lady Fern
Athyrium asplenioides
516. Eastern Poison Ivy
Toxicodendron radicans
517. Yellow Fringed Orchid
Platanthera ciliaris
518. Balloon Cherry
Physalis angulata
519. Saw Greenbrier
Smilax bona-nox
520. Canada Lettuce
Lactuca canadensis
521. Littleleaf Buttercup
Ranunculus abortivus
522. Canada Nettle
Laportea canadensis
523. Carolina Horsenettle
Solanum carolinense
524. Maryland Sanicle
Sanicula marilandica
525. Bristly Greenbrier
Smilax tamnoides
526. American Lopseed
Phryma leptostachya
527. Beaked Panic Grass
Coleataenia anceps
528. Smooth Yellow False Foxglove
Aureolaria flava
529. Lamb’s Quarters
Chenopodium album
530. Indian Pipe
Monotropa uniflora
531. Arrowleaf Tearthumb
Persicaria sagittata
532. Yellowfruit Horse-Gentian
Triosteum angustifolium
533. Woodland Bluegrass
Poa sylvestris
534. Bluntlobe Cliff Fern
Physematium obtusum
535. Smooth Rockcress
Borodinia laevigata
536. Sicklepod
Borodinia canadensis
537. Rattlesnake Root
Nabalus altissima
538. False Pennyroyal
Trichostema brachiatum
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