Interested in fairly obscure Eastern US natives. Long list, maybe I'll get lucky on something.
Aconitum reclinatum β White Monkshood
Aconitum uncinatum β Southern Blue Monkshood
Adlumia fungosa β Climbing Fumitory, Allegheny Vine
Amianthium muscitoxicum β Fly-Poison
Anemone quinquefolia βWood Anemone
Angelica triquinata β Filmy Angelica, Mountain Angelica
Angelica venenosa β Hairy Angelica
Aralia hispida β Bristly Sarsaparilla
Aralia nudicaulis β Wild Sarsaparilla
Aristolochia serpentaria β Virginia Snakeroot
Asclepias amplexicaulis β Clasping Milkweed
Asclepias quadrifolia β Four-leaf Milkweed
Asclepias rubra β Red Milkweed
Asclepias variegata β Redring Milkweed
Astilbe biternata β Appalachian False Goat's Beard
Cardamine angustata β Slender Toothwort
Cardamine bulbosa β Spring Cress
Cardamine concatenate β Cut-leaf Toothwort
Cardamine diphylla β Two-leaf Toothwort, Crinkleroot
Clematis occidentalis var. occidentalis β Purple Clematis, Mountain Clematis
Clematis ochroleuca β Curlyheads
Clematis viorna β Vase Vine, Leatherflower
Clitoria mariana β Atlantic Butterfly Pea
Cornus Canadensis β Bunchberry
Delphinium tricorne β Dwarf Larkspur
Diphylleia cymosa β Umbrella Leaf
Drosera rotundifolia β Round-leaved Sundew
Erigenia bulbosa - Harbinger-Of-Spring
Erythronium unbilicatum β Dimpled Trout Lily
Galax urceolata β Galax
Gentiana villosa β Striped Gentian
Hepatica americana β Round-lobed Hepatica
Heuchera pubescens β Marbled Alumroot
Houstonia purpurea - Purple Bluets
Hydrophyllum canadensis β Canada Waterleaf
Panax trifolius β Dwarf Ginseng
Passiflora lutea β Yellow Passionflower
Phacelia dubia β Appalachian Phacelia
Prenanthes altissima β Tall Rattlesnake Root
Prenanthes serpentaria β Lion's Foot
Prenanthes trifoliolata β Gall-Of-The-Earth
Saxifraga virginiensis β Early Saxifrage
Scutellaria serrata β Showy Skullcap
Spiraea corymbosa β Dwarf Spiraea
Stellaria pubera β Star Chickweed
Stenanthium gramineum β Featherbells
Streptopus amplexifolius β White Mandarin
Streptopus roseus β Rose Twisted-stalk
Trichostema dichotomum β Forked Bluecurls
Veratrum virginicum β Virginia Bunchflower
Veratrum viride β False Hellebore
Xerophyllum asphodeloides β Turkeybeard, Beargrass