Chehalis River Surge Plain Natural Area Preserve Vascular Plant List Courtesy of DNR staff from surveys by Walter Fertig, August 2018 and May 2020. Nomenclature follows Flora of the Pacific Northwest 2nd Edition (2018). * - Introduced Species Common Name Family Acer circinatum Vine maple Aceraceae Acer macrophyllum Big-leaf maple Sapindaceae Adiantum aleucticum var. aleuticum Maidenhair fern Pteridaceae Alnus rubra Red alder Betulaceae Angelica arguta Sharptooth angelica Apiaceae Angelica genuflexa Kneeling angelica Apiaceae Anthoxanthum odoratum * Sweet vernalgrass Poaceae Aruncus dioicus var. acuminatus Goatsbeard Rosaceae Athyrium filix-femina var. cyclosorum Lady-fern Athyriaceae Beckmannia syzigachne American sloughgrass Poaceae Bellis perennis * English daisy Asteraceae Bidens cernua Nodding beggar-ticks Asteraceae Callitriche stagnalis Pond water-starwort Plantaginaceae Caltha palustris Yellow marsh-marigold Ranunculaceae Cardamine angulata Angled bittercress Brassicaceae Cardamine hirsuta * Hairy bittercress Brassicaceae Cardamine pensylvanica Pennsylvania bittercress Brassicaceae Carex leptopoda Slender-foot sedge Cyperaceae Carex obnupta Slough sedge Cyperaceae Cirsium vulgare * Bull thistle Asteraceae Claytonia sibirica Siberian claytonia Montiaceae Cornus occidentalis Creek dogwood Cornaceae Corydalis scouleri Scouler's corydalis Papaveraceae Dactylis glomerata * Orchard grass Poaceae Dicentra formosa ssp. formosa Pacific bleedingheart Papaveraceae Digitalis purpurea ssp. purpurea * Foxglove Plantaginaceae Elymus glaucus ssp. glaucus Blue wildrye Poaceae Epilobium ciliatum Common willow-herb Onagraceae Equisetum telmateia ssp. braunii Giant horsetail Equisetaceae Festuca subulata Bearded fescue Poaceae REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM. DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504 Fraxinus latifolia Oregon ash Oleaceae Galium aparine Catchweed bedstraw Rubiaceae Galium palustre Common marsh bedstraw Rubiaceae Galium trifidum Pacific bedstraw Rubiaceae Galium triflorum Fragrant bedstraw Rubiaceae Gaultheria shallon Salal Ericaceae Geum macrophyllum Large-leaved avens Rosaceae Gnaphalium uliginosum Marsh cudweed Asteraceae Helenium autumnale Common sneezeweed Asteraceae Heracleum maximum Cow-parsnip Apiaceae Hyacinthoides x massartiana Garden bluebells Asparagaceae Hydrophyllum tenuipes Slender-stem waterleaf Hydrophyllaceae Impatiens capensis * Spotted jewelweed Balsaminaceae Iris pseudacorus * Yellow iris Iridaceae Lilaeopsis occidentalis Western lilaeopsis Apiaceae Lonicera involucrata var. involucrata Twinberry honeysuckle Caprifoliaceae Lycopus uniflorus Northern bugleweed Lamiaceae Lysichiton americanus American skunkcabbage Araceae Lythrum salicaria * Purple loosestrife Lythraceae Maianthemum dilatatum May-lily Asparagaceae Malus fusca Oregon crabapple Rosaceae Marah oregana Manroot Cucurbitaceae Melica subulata Alaska oniongrass Poaceae Mertensia platyphylla Broad-leaved bluebells Boraginaceae Mycelis muralis * Wall-lettuce Asteraceae Myosotis arvensis * Field forget-me-not Boraginaceae Myosotis laxa Small-flowered forget-me-not Boraginaceae Oemleria cerasiformis Osoberry Rosaceae Oenanthe sarmentosa Pacific water-parsley Apiaceae Osmorhiza berteroi Mountain sweet-cicely Apiaceae Petasites frigidus var. palmatus Palmate sweet coltsfoot Asteraceae Phalaris arundinacea * Reed canarygrass Poaceae Physocarpus capitatus Pacific ninebark Rosaceae Picea sitchensis Sitka spruce Pinaceae Poa annua * Annual bluegrass Poaceae Poa palustris * Fowl bluegrass Poaceae Polypodium glycyrrhiza Licorice-fern Polypodiaceae Polystichum munitum Western sword-fern Dryopteridaceae Populus trichocarpa Black cottonwood Salicaceae Prosartes smithii Large-flowered fairy-bell Liliaceae DEPARTMENT OF Conservation, Recreation and Transactions NATURAL RESOURCES Natural Areas Program Prunus emarginata Bitter cherry Rosaceae Pteridium aquilinum var. pubescens Bracken Dennstaedtiaceae Ranunculus repens * Creeping buttercup Ranunculaceae Ranunculus uncinatus Little buttercup Ranunculaceae Rosa gymnocarpa Baldhip rose Rosaceae Rosa nutkana ssp. nutkana Nootka rose Rosaceae Rubus bifrons * Himalayan blackberry Rosaceae Rubus laciniatus * Cutleaf blackberry Rosaceae Rubus leucodermis Black raspberry Rosaceae Rubus nutkanus Thimbleberry Rosaceae Rubus spectabilis Salmonberry Rosaceae Rubus ursinus Pacific blackberry Rosaceae Salix hookeriana Hooker's willow Salicaceae Salix sitchensis var. sitchensis Sitka willow Salicaceae Sambucus racemosa var. arborescens Coast red elderberry Viburnaceae Scirpus microcarpus Small-fruited bulrush Cyperaceae Scutellaria lateriflora Blue skullcap Lamiaceae Solanum dulcamara * Bittersweet Solanaceae Sonchus asper ssp. asper * Prickly sowthistle Asteraceae Spiraea douglasii var. douglasii Douglas' spirea Rosaceae Stachys cooleyae Cooley's hedge-nettle Lamiaceae Stellaria media * Common chickweed Caryophyllaceae Streptopus amplexifolius Clasping-leaved twisted-stalk Liliaceae Symphyotrichum subspicatum Douglas' aster Asteraceae Tanacetum vulgare * Common tansy Asteraceae Taraxacum officinale * Common dandelion Asteraceae Tellima grandiflora Fringecup Saxifragaceae Thuja plicata Red cedar Cupressaceae Tolmiea menziesii Youth-on-age Saxifragaceae Trifolium dubium * Least hop clover Fabaceae Trifolium repens * White clover Fabaceae Triglochin scilloides Flowering quillwort Juncaginaceae Trillium ovatum var. ovatum Western trillium Melanthiaceae Tsuga heterophylla Pacific hemlock Pinaceae Typha latifolia Broad-leaved cattail Typhaceae Urtica dioica ssp. gracilis Stinging nettle Urticaceae Vaccinium parvifolium Red bilberry Ericaceae Veronica arvensis * Wall speedwell Plantaginaceae Vicia nigricans var. gigantea Giant vetch Fabaceae Vitis vinifera * European grape Vitaceae DEPARTMENT OF Conservation, Recreation and Transactions NATURAL RESOURCES Natural Areas Program DEPARTMENT OF Conservation, Recreation and Transactions NATURAL RESOURCES Natural Areas Program .