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.

CARDEROCK RECREATION AREA, C&O CANAL NATIONAL HISTORICAL PARK, MONTGOMERY COUNTY, MD This list records plants seen during a field trip to the Carderock-Marsden Area of the C&O canal on April 5, 2014. Field trip led by Cris Fleming. Plant list by Liz Jones. Nomenclature follows the USDA Plant List Database at http://plants.usda.gov (February 2014). Synonyms are footnoted for some species.

Allium tricoccum Ramps Liliaceae Amelanchier arborea Shadbush Rosaceae Arabis laevigata Smooth rockcress Arabis lyrata Lyre-leaved rockcress Brassicaceae Asarum canadense Wild ginger Aristolochiaceae angustata1 Slender toothwort Brassicaceae Cardamine concatenata 2 Cut-leaved toothwort Brassicaceae Cardamine hirsuta Hairy bitter cress Brassicaceae Carex careyana Carey’s sedge Cyperaceae Carex pensylvanica Pennsylvania sedge Cyperaceae Claytonia virginica Spring beauty Portulacaceae Cystopteris protrusa Fragile fern Dryopteridaceae Dicentra canadensis Squirrel corn Fumariaceae Dicentra cucullaria Dutchman’s breeches Fumariaceae Dirca palustris Leatherwood Thymelaeaceae bulbosa Harbinger-of-spring Apiaceae Erythronium americanum Trout lily Liliaceae Galium aparine Cleavers Rubiaceae Geum canadense White avens Rosaceae Glechoma hederacea Gill-over-the-ground Lamiaceae Hydrophyllum virginianum waterleaf Hydrophyllaceae Jeffersonia diphylla Twinleaf Berberidaceae Lamium purpureum Purple deadnettle Lamiaceae Lindera benzoin Spicebush Lauraceae Mertensia virginica Virginia bluebells covillei Coville's phacelia Hydrophyllaceae Phlox divaricata Wild blue phlox Polemoniaceae Ranunculus abortivus Aborted buttercup Ranunculaceae Ranunculus hispidus3 Swamp buttercup Ranunculaceae Sanguinaria canadensis Bloodroot Papaveraceae Saxifraga virginiensis Early saxifrage Saxifragaceae Silene caroliniana Wild pink Caryophyllaceae Stellaria media Common chickweed Caryophyllaceae Stellaria pubera Star chickweed Caryophyllaceae Tipularia discolor Cranefly orchid Orchidaceae Trillium sessile Sessile trillium Liliaceae Valeriana pauciflora Few-flowered valerian Valerianaceae Veronica hederifolia Ivy-leaved speedwell Scrophulariaceae Vinca minor Periwinkle Apocynaceae Viola sororia4 Common blue violet Violaceae

1 Dentaria heterophylla 2 Dentaria laciniata 3 Ranunculus septentrionalis 4 Viola papilionacea