Native Society Plant Lists We offer these lists to individuals and groups to enhance the enjoyment and study of of different locations in Maryland and nearby states. Their accuracy has not been verified by the Maryland Native Plant Society.

SUSQUEHANNA RIVER (LOCK 12 RECREATION PARK) YORK COUNTY, PA This list records plants seen during a field trip by members of the Maryland Native Plant along the Susquehanna River near Lock 12 of the historic Susquehanna & Tidewater Canal on September 21, 2014. Field trip led by Tim Draude and Joan King. Plant list by Joan King. Nomenclature follows the USDA Plant Database at http://plants.usda.gov (February 2014). Synonyms are footnoted for some .

Agalinis purpurea Purple gerardia Scrophulariaceae Agrostis perennans Upland bentgrass Poaceae Amelanchier arborea Shadbush Rosaceae Amorpha fruticosa False indigo Fabaceae Andropogon gerardii Big bluestem Poaceae Anemone canadensis anemone Ranunculaceae Arabis lyrata Lyre-leaved rockcress Brassicaceae Artemisia vulgaris Mugwort Asarum canadense Wild ginger Aristolochiaceae Asimina triloba Pawpaw Annonaceae Baptisia tinctoria Wild indigo Fabaceae asteroides Boltonia Asteraceae Bryoandersonia sp. Bryoandersonia moss Brachytheciaceae Carex laxiculmis Spreading sedge Cyperaceae Carpinus caroliniana Hornbeam Betulaceae Carya cordiformis Bitternut hickory Juglandaceae Chelone glabra White turtlehead Scrophulariaceae Chionanthus virginicus Fringetree Oleaceae Collinsonia canadensis Horse balm Lamiaceae tripteris Tall tickseed Asteraceae sp. Hawthorn Rosaceae Dichanthelium sphaerocarpon Round-fruited panicgrass Poaceae Elymus villosus Hairy wild rye Poaceae perfoliatum Boneset Asteraceae Eupatorium rotundifolium Round-leaved thoroughwort Asteraceae Eupatorium serotinum Late-flowering boneset Asteraceae Euphorbia corollata Flowering spurge Euphorbiaceae divaricata1 White wood Asteraceae Euthamia graminifolia2 Grass-leaved goldenrod Asteraceae Eutrochium fistulosum3 Joe Pye weed Asteraceae Eutrochium purpureum4 Sweet-scented Joe-Pye weed Asteraceae Helianthemum bicknellii Hoary frostweed Cistaceae Helianthus decapetalus Thin-leaved sunflower Asteraceae Helianthus giganteus Tall sunflower Asteraceae Hibiscus laevis Halberd-leaved rosemallow Malvaceae Hypericum prolificum5 Shrubby St. Johnswort Clusiaceae Hypoxis hirsuta Yellow star-grass Liliaceae Ilex verticillata Winterberry Aquifoliaceae capensis Jewelweed Impatiens pallida Pale jewelweed Balsaminaceae Ionactis linariifolius Stiff aster Asteraceae pseudacorus Yellow iris Iridaceae Justicia americana Water willow Acanthaceae Mountain laurel Ericaceae Lathyrus venosus Veiny pea Fabaceae Lespedeza capitata Bush clover Fabaceae Lespedeza hirta Hairy lespedeza Fabaceae Lespedeza virginica Slender lespedeza Fabaceae Lindera benzoin Spicebush Lauraceae Lonicera maackii Bush honeysuckle Caprifoliaceae Ludwigia alternifolia Seedbox Onagraceae ciliata Fringed loosestrife Lythrum salicaria Purple loosestrife Lythraceae Nyssa sylvatica Black gum Cornaceae Oenothera biennis Common evening-primrose Onagraceae Panicum virgatum Switchgrass Poaceae Phytolacca americana Pokeweed Phytolaccaceae Pilea pumila Clearweed Urticaceae Polygala verticillata Whorled milkwort Polygalaceae Polygonum cespitosum Long-bristled smartweed Polygonaceae Polygonum hydropiper Water-pepper Polygonaceae Polygonum virginianum6 Jumpseed Polygonaceae Polystichum acrostichoides Christmas fern Dryopteridaceae Pteridium aquilinum Bracken fern Dennstaedtiaceae Pycnanthemum tenuifolium Narrow-leaved mountain mint Lamiaceae Rhododendron arborescens Smooth Ericaceae Rhododendron periclymenoides7 Pinxterbloom Ericaceae Schizachyrium scoparium8 Little bluestem Poaceae Schoenoplectus pungens Common three-square Cyperaceae Scutellaria incana Downy skullcap Lamiaceae Silene stellata Starry campion Caryophyllaceae Smilax herbacea Carrion Smilacaceae altissima Tall goldenrod Asteraceae Solidago arguta Sharp-leaved goldenrod Asteraceae Solidago bicolor Silverrod Asteraceae Solidago caesia Blue-stemmed goldenrod Asteraceae Solidago flexicaulis Zig-zag goldenrod Asteraceae Solidago odora Sweet goldenrod Asteraceae Solidago rugosa Wrinkle-leaved goldenrod Asteraceae Solidago simplex var. racemosa9 Riverbank goldenrod Asteraceae Sorghastrum nutans Indian grass Poaceae Symphyotrichum cordifolium10 Heart-leaved aster Asteraceae Symphyotrichum ericoides White heath aster Asteraceae Symphyotrichum lanceolatum11 Panicled aster Asteraceae Symphyotrichum lateriflorum12 Calico aster Asteraceae Thelypteris noveboracensis fern Thelypteridaceae Uvularia sessilifolia Sessile-leaved bellwort Liliaceae Vaccinium pallidum13 Lowbush blueberry Ericaceae Veronicastrum virginicum Culver's-root Scrophulariaceae Viburnum dentatum Arrowwood Caprifoliaceae

1 Aster divaricatus 2 Solidago graminifolia 3 Eupatoriadelphus fistulosus 4 Eupatorium purpureum 5 Hypericum spathulatum 6 Tovara virginiana 7 Rhododendron nudiflorum 8 Andropogon scoparius 9 Solidago simplex ssp. randii var. racemosa 10 Aster cordifolius 11 Aster simplex 12 Aster lateriflorus 13 Vaccinium vacillans