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State Plant Listings

Pennsylvania

Vegetation References

(Dominant plant species present in each vegetation type are listed in Appendix C)

93 Beech-Maple Forest (Fagus-Acer)
94 Mixed Mesophytic Forest (Acer-Aesculus-Fagus-Liriodendron-Quercus-Tilia)
95 Appalachian Oak Forest (Quercus)
97 Northern Hardwoods (Acer-Betula-Fagus-Tsuga)
101 Oak-Hickory-Pine Forest (Quercus-Carya-Pinus)

Botanical Expert

John Kunsman, Botanist
Pennsylvania Natural Diversity Inventory
PNDI-East
The Nature Conservancy
34 Airport Drive
Middletown, PA 17507
(717) 948-3962
(717) 948-3957 (fax)

Recommended Flora

Rhoads, A.F. and W.M. Klein. 1993. The Vascular Flora of Pennsylvania: Annotated Checklist and Atlas. American Philosophical Society. Philadelphia, PA. 636 pgs. + illus. ISBN 0871692074.

Wherry, E.T.; J.M. Fogg; H.A. Wahl. 1979. Atlas of the Flora of Pennsylvania. Morris Arboretum of the University of Pennsylvania. Philadelphia, PA. 390 pgs. maps.

Native Plants for Landscape Use in Pennsylvania

Ferns

Adiantum pedatum (northern maidenhair fern)
Asplenium platyneuron (ebony spleenwort)
Asplenium trichomanes (maidenhair spleenwort)
Athyrium filix-femina (lady fern)
Botrychium virginianum (rattlesnake fern)
Cystopteris bulbifera (bladder fern)
Cystopteris fragilis (fragile fern)
Dennstaedtia punctilobula (hay-scented fern)
Dryopteris cristata (crested wood fern, buckler fern)
Dryopteris marginalis (marginal wood fern)
Gymnocarpium dryopteris (oak fern)
Onoclea sensibilis (sensitive fern, bead fern)
Osmunda cinnamomea (cinnamon fern)
Osmunda claytoniana (interrupted fern)
Osmunda regalis (royal fern)
Phegopteris hexagonoptera (broad beech fern)
Polystichum acrostichoides (Christmas fern)
Thelypteris novaboracensis (New York fern, tapering fern)
Thelypteris simulata (Massachusetts fern)
Woodsia ilvensis (rusty woodsia)
Woodwardia virginica (Virginia chain fern)

Forbs (annuals/biennials)

Campanulastrum americanum (American bellflower, tall bellflower)
Corydalis sempervirens (pale corydalis)
Gentianopsis crinita (fringed gentian)
Lobelia spicata (pale lobelia)
Oenothera biennis (common evening primrose)
Rudbeckia hirta (black-eyed Susan)

Forbs (perennials)

Acorus calamus (sweet flag, calamus)
Actaea pachypoda (white baneberry)
Ageratina altissima var. altissima (white snakeroot)
Allium canadense (wild garlic)
Allium cernuum (nodding onion)
Allium tricoccum (wild leek)
Anaphalis margaritacea (pearly everlasting)
Anemone canadensis (Canada anemone, windflower)
Anemone virginiana (thimbleweed, tall anemone)
Antennaria spp. (pussytoes, everlasting)
Apocynum androsaemifolium (spreading dogbane)
Aquilegia canadensis (columbine)
Arisaema triphyllum (Jack-in-the-pulpit, Indian turnip)
Aruncus dioicus (goat's beard)
Asarum canadense (wild ginger)
Asclepias incarnata (swamp milkweed)
Asclepias tuberosa (butterfly weed)
Asclepias verticillata (whorled milkweed)
Aster divaricatus (white wood aster)
Aster laevis (smooth aster)
Aster novae-angliae (New England aster)
Aster oblongifolius (aromatic aster)
Aster pilosus (frost aster)
Aster puniceus (red-stem aster, swamp aster)
Baptisia australis (blue wild indigo)
Caltha palustris (marsh marigold, cowslip)
Campanula rotundifolia (harebell)
Cardamine diphylla (two-leaved toothwort)
Caulophyllum thalictroides (blue cohosh)
Chelone glabra (turtlehead)
Cimicifuga racemosa (bugbane, black cohosh)
Claytonia caroliniana (broad-leaved spring beauty)
Claytonia virginica (narrow-leaved spring beauty)
Clintonia borealis (clintonia, blue-bead lily)
Collinsonia canadensis (stoneroot, citronella horsebalm)
Coptis trifolia ssp. groenlandica (goldthread)
Coreopsis tripteris (tall coreopsis)
Cornus canadensis (bunchberry)
Delphinium tricorne (dwarf larkspur)
Desmodium canadense (Canada tick-trefoil, Canada tickclover)
Dicentra cucullaria (Dutchman's breeches)
Dodecatheon meadia (shooting star)
Epilobium angustifolium (fireweed, willow herb)
Erythronium americanum (eastern trout lily, yellow trout lily)
Eupatorium fistulosum (Joe-pye weed)
Eupatorium maculatum (spotted Joe-pye weed)
Eupatorium perfoliatum (boneset)
Eupatorium purpureum (Joe-pye weed)
Euphorbia corollata (flowering spurge)
Euthamia graminifolia var. graminifolia (grass-leaved goldenrod)
Fragaria virginiana (wild strawberry)
Galium triflorum (sweet-scented bedstraw)
Gentiana andrewsii (bottle gentian)
Gentiana clausa (bottle gentian)
Geranium maculatum (wild geranium, cranesbill)
Geum rivale (purple avens, water avens)
Helenium autumnale (common sneezeweed)
Helianthus simulans (narrow-leaved sunflower, swamp sunflower)
Heliopsis helianthoides (ox-eye sunflower, false sunflower)
Hepatica nobilis var. acuta (sharp-lobed hepatica)
Hibiscus moscheutos (swamp rose mallow, marshmallow hibiscus)
Houstonia caerulea (bluets)
Houstonia longifolia var. longifolia (long-leaved bluets, pale bluets)
Hydrophyllum virginianum (Virginia waterleaf)
Hypericum ascyron (great St. John's wort)
Hypoxis hirsuta (yellow star grass)
Iris versicolor (blue flag)
Iris virginica var. shrevei (blue flag)
Lespedeza capitata (roundheaded bush clover)
Liatris spicata (marsh blazing star, gayfeather)
Lilium canadense (wild yellow lily, Canada lily)
Lilium philadelphicum (wood lily)
Linum virginianum (woodland flax)
Lithospermum canescens (hoary puccoon)
Lobelia cardinalis (cardinal flower)
Lobelia siphilitica (great blue lobelia)
Lupinus perennis (wild lupine)
Lysimachia ciliata (fringed loosestrife)
Maianthemum canadense (wild lily-of-the-valley, Canada mayflower)
Maianthemum racemosum ssp. racemosum (false Solomon's seal, false spikenard)
Maianthemum stellatum (starry Solomon's seal)
Mertensia virginica (bluebells)
Mitchella repens (partridge berry)
Monarda didyma (beebalm, oswego tea)
Monarda fistulosa (wild bergamot, horsemint, beebalm)
Nuphar lutea (yellow pond lily, cow lily, spatter dock)
Oenothera fruticosa (sundrops)
Osmorhiza claytoni (sweet cicely, sweet jarvil)
Peltandra virginica (arrow arum)
Penstemon digitalis (beardtongue)
Penstemon hirsutus (hairy beardtongue)
Phlox divaricata (blue woodland phlox, sweet William)
Phlox paniculata (summer phlox, perennial phlox)
Phlox stolonifera (creeping phlox)
Physostegia virginiana (obedient plant, false dragonhead)
Podophyllum peltatum (May apple)
Polemonium reptans Jacob's ladder, Greek valerian)
Polygonatum biflorum (Solomon's seal)
Potentilla arguta (white cinquefoil, prairie cinquefoil, tall cinquefoil)
Potentilla simplex (common cinquefoil)
Pycnanthemum tenuifolium (slender mountain mint)
Pycnanthemum virginianum (mountain mint)
Pyrola elliptica (shinleaf)
Rhexia virginica (meadow beauty)
Rudbeckia fulgida (black-eyed Susan, orange coneflower)
Rudbeckia laciniata (cut-leaf coneflower)
Salvia lyrata (cancer weed, lyre-leaf sage)
Sanguinaria candensis (bloodroot)
Sedum ternatum (wild stonecrop)
Senecio aureus (golden ragwort)
Silene stellata (starry campion)
Silene virginica (fire pink)
Sisyrinchium angustifolium (narrow-leaved blue-eyed grass)
Solidago caesia (blue-stemmed goldenrod, wreath goldenrod)
Solidago canadensis (meadow goldenrod)
Solidago juncea (early goldenrod, plume goldenrod)
Solidago nemoralis (gray goldenrod, old-field goldenrod)
Solidago odora (sweet goldenrod)
Solidago rugosa (rough-leaved goldenrod)
Solidago speciosa (showy goldenrod)
Solidago ulmifolia (elm-leaved goldenrod)
Streptopus roseus (rosy twisted stalk)
Tephrosia virginiana (goat's rue)
Thalictrum dioicum (early meadow rue)
Thalictrum pubescens (tall meadow rue)
Thalictrum thalictroides (rue anemone)
Tiarella cordifolia (foam flower)
Tradescantia ohiensis (Ohio spiderwort)
Tradescantia virginiana (Virginia spiderwort, spider lily)
Trientalis borealis ssp. borealis (starflower)
Trillium cernuum (nodding trillium)
Trillium erectum (wakerobin, purple trillium)
Trillium undulatum (painted trillium)
Uvularia grandiflora (bellwort, merrybells)
Uvularia sessilifolia (wildoats, merrybells)
Verbena hastata (blue verbena, blue vervain)
Vernonia noveboracensis (New York ironweed)
Veronicastrum virginicum (Culver's root)
Viola canadensis (Canada violet)
Viola conspersa (American dog violet)
Viola pedata (bird-foot violet)
Viola pubescens (downy or smooth yellow violet)
Viola soraria (common blue violet, meadow violet)
Zizia aptera (heart-leaved golden alexanders)
Zizia aurea (golden alexanders)

Grasses/Grass-like plants

Agrostis scabra (ticklegrass, fly-away grass)
Andropogon gerardii (big bluestem)
Andropogon virginicus (broom sedge)
Bromus kalmii (prairie brome, wild chess)
Calamagrostis canadensis (bluejoint grass)
Carex aquatilis (water sedge)
Carex pensylvanica (Pennsylvania sedge)
Carex plantaginea (plantain-leaved sedge)
Carex stipata (awl-fruited sedge)
Carex stricta (tussock sedge)
Carex utriculata (beaked sedge)
Danthonia spicata (poverty grass)
Deschampsia cespitosa (tufted hairgrass)
Eleocharis palustris (creeping spikesedge, spike rush)
Elymus canadensis (Canada wild rye)
Elymus hystrix var. hystrix (bottlebrush grass)
Eragrostis spectabilis (purple lovegrass, tumblegrass)
Glyceria grandis (American mannagrass, tall mannagrass, reed meadowgrass)
Juncus effusus var. solutus (soft rush)
Leersia oryzoides (rice cut grass)
Panicum virgatum (switchgrass)
Schizachyrium scoparium (little bluestem)
Scirpus acutus (hardstem bulrush)
Scirpus atrovirens (dark green bulrush)
Scirpus cyperinus (wool grass)
Scirpus tabernaemontani (great bulrush)
Sorghastrum nutans (Indian grass)
Spartina pectinata (prairie cordgrass, freshwater cordgrass)
Sporobolus asper (tall dropseed)
Sporobolus cryptandrus (sand dropseed)
Typha latifolia (cattail)

Shrubs (deciduous)

Alnus incana (speckled alder, mountain alder)
Alnus serrulata (smooth alder)
Amelanchier arborea (downy serviceberry, shadbush, Juneberry)
Aronia melanocarpa (black chokeberry)
Castanea pumila (chinquapin)
Ceanothus americanus (New Jersey tea, red root)
Cephalanthus occidentalis (buttonbush)
Clethra alnifolia (summer sweet)
Comptonia peregrina (sweet fern)
Cornus alternifolia (pogoda dogwood, alternate-leaved dogwood)
Cornus amomum ssp. obliqua (swamp dogwood, silky dogwood)
Cornus racemosa (gray dogwood)
Cornus sericea (red-twig dogwood, red-osier dogwood)
Corylus americana (American hazelnut or filbert)
Corylus cornuta (beaked hazelnut or filbert)
Diervilla lonicera (bush honeysuckle)
Dirca palustris (leatherwood, ropebark)
Euonymus americana (strawberry bush, brook euonymus, hearts-a-bustin')
Euonymus atropurpurea (wahoo, burning bush)
Hydrangea arborescens (wild hydrangea)
Hypericum hypericoides ssp. hypericoides (St. Andrew's cross)
Hypericum prolificum (shrubby St. John's wort)
Ilex verticillata (winterberry, black alder)
Lindera benzoin (spicebush)
Lonicera dioica (limber or wild honeysuckle)
Lyonia ligustrina (male-berry, male-blueberry)
Physocarpus opulifolius (ninebark)
Prunus virginiana (chokecherry)
Rhododendron arborescens (smooth azalea)
Rhododendron canadense (rhodora)
Rhododendron periclymenoides (pinxterbloom azalea)
Rhododendron prinophyllum (roseshell azalea, early azalea)
Rhododendron viscosum (swamp azalea)
Rhus aromatica (fragrant sumac)
Rhus copallinum (dwarf or winged sumac)
Rhus glabra (smooth sumac)
Rhus hirta (staghorn sumac)
Ribes cynosbati (prickly gooseberry, dogberry)
Rosa blanda (early wild rose, smooth rose)
Rosa carolina (Carolina rose)
Rubus idaeus ssp. strigosus (red raspberry)
Rubus occidentalis (black raspberry, thimbleberry)
Rubus odoratus (thimbleberry)
Salix bebbiana (Bebb willow, long-beaked willow)
Salix discolor (pussy willow)
Sambucus canadensis (elderberry, common elder)
Sambucus racemosa var. pubens (scarlet elderberry, red-berried elder)
Spiraea alba (meadow sweet)
Spiraea tomentosa (steeplebush, hardhack)
Staphylea trifolia (bladdernut)
Symphoricarpos albus (snowberry)
Vaccinium angustifolium (low-bush blueberry)
Vaccinium corymbosom (highbush blueberry)
Viburnum acerifolium (maple leaf viburnum)
Viburnum dentatum (southern arrowwood)
Viburnum lentago (black haw, nannyberry)
Viburnum nudum var. cassinoides (wild raisin)
Viburnum prunifolium (black haw, nanny berry)

Shrubs (evergreen)

Epigaea repens (trailing arbutus)
Gaultheria procumbens (wintergreen, checkerberry)
Kalmia angustifolia (sheep laurel, lambkill kalmia)
Kalmia latifolia (mountain laurel)
Rhododendron maximum (rosebay, great laurel)
Taxus canadensis (Canada yew)

Trees (deciduous)

Acer negundo (box elder)
Acer pensylvanicum (striped maple)
Acer rubrum (red maple)
Acer saccharinum (silver maple)
Acer saccharum (sugar maple)
Acer spicatum (mountain maple)
Aesculus flava (sweet buckeye, yellow buckeye)
Aesculus glabra (Ohio buckeye, horse chestnut)
Betula lenta (cherry birch)
Betula nigra (river birch)
Betula papyrifera (paper birch)
Carpinus caroliniana (blue beech, hornbeam, musclewood)
Carya alba (mockernut hickory)
Carya cordiformis (bitternut, swamp hickory)
Carya ovata (shagbark hickory)
Celtis occidentalis (hackberry, sugarberry)
Cercis canadensis (redbud)
Cornus florida (flowering dogwood)
Crataegus crus-galli (cockspur hawthorn)
Crataegus mollis (downy hawthorn)
Crataegus punctata (dotted hawthorn, white thorn)
Diospyros virginiana (persimmon)
Fagus grandifolia var. caroliniana (beech)
Fraxinus americana (white ash)
Fraxinus pensylvanica (green ash)
Gleditsia triacanthos (honey locust)
Hamamelis virginiana (witch hazel)
Juglans cinerea (butternut, white walnut)
Juglans nigra (black walnut)
Larix laricina (tamarack, American larch)
Liquidambar styraciflua (sweet gum)
Liriodendron tulipifera (tulip tree)
Magnolia acuminata (cucumber tree)
Nyssa sylvatica (black gum, tupelo)
Ostrya virginiana (ironwood, hophornbeam)
Platanus occidentalis (sycamore, plane-tree)
Populus deltoides (eastern cottonwood)
Populus grandidentata (large-toothed aspen)
Populus tremuloides (quaking aspen)
Prunus americana (wild plum)
Prunus pensylvanica (fire or pin cherry)
Prunus serotina (black cherry)
Quercus alba (white oak)
Quercus bicolor (swamp white oak)
Quercus coccinea (scarlet oak)
Quercus macrocarpa (bur oak)
Quercus marilandica (blackjack oak)
Quercus muhlenbergii (chinkapin oak, chestnut oak)
Quercus palustris (pin oak)
Quercus phellos (willow oak)
Quercus rubra (red oak)
Quercus stellata (post oak)
Quercus velutina (black oak)
Salix amygdaloides (peachleaf willow)
Salix nigra (black willow)
Sassafras albidum (sassafras)
Sorbus americana (mountain ash)
Tilia americana (American linden, basswood)
Ulmus americana (American elm)
Ulmus rubra (red elm, slippery elm)

Trees (evergreen)

Abies balsamea (balsam fir)
Juniperus virginiana (eastern red cedar)
Pinus resinosa (red pine, Norway pine)
Pinus rigida (pitch pine)
Pinus strobus (eastern white pine)
Pinus virginiana (Virginia pine)
Tsuga canadensis (eastern hemlock)

Vines (deciduous)

Celastrus scandens (American bittersweet)
Clematis occidentalis var. occidentalis (purple clematis)
Clematis virginiana (virgin's bower)
Parthenocissus quinquefolia (Virginia creeper)
Vitis riparia (riverbank grape)

Federally Listed Endangered Species

Northeastern (Barbed bristle) bulrush (Scirpus ancistrochaetus)
Small whorled pogonia (Isotria medeoloides)
Virginia spiraea (Spiraea virginiana)

Pennsylvania Noxious Species

Because the noxious weed lists have continually changed since we gathered them in 1994, we are not including them at this time. Not all States have noxious weed lists. Those that do, do not use the same standards of importance and are not comparable. States typically have included plants that interfere with agriculture (Canada thistle), or cause human health problems (poison ivy). Some States are now including a category of plants that invade and degrade the environment (purple loosestrife). Check with your State's Agriculture Department or Weed Scientist listed below. The noxious weed list can be used two ways on roadsides: 1) check to not inadvertently plant these invasive plants, and 2) note the plants you are legally responsible to control. Many States now check adjacent State lists to avoid planting their neighbors' problem plants. Because weeds do not respect political boundaries, and because by their very nature weeds continue to adapt and expand, monitoring and controlling invasives at State borders is a wise part of vegetation management.

(Weed Law)

Department of Agriculture
Bureau of Plant Industry
2301 North Cameron Street
Harrisburg, PA 17110

William Curran, Agronomy
Penn State University
116 Agricultural Science Building
University Park, PA 16802
(814) 863-1014

Pennsylvania Resources

Natural Diversity Inventory
Bureau of Forestry
PO Box 8552
Harrisburg, PA 17105
(717) 783-0388

The Nature Conservancy Field Office
1100 E. Hector Street, Ste. 470
Conshohocken, PA 19428
(610) 834-1323

Pennsylvania Native Plant Society
1806 Commonwealth Building
316 Fourth Avenue
Pittsburgh, PA 15222

Brandywine Conservancy, Inc.
PO Box 141
Chadds Ford, PA 19317

Chesapeake Bay Foundation
214 State St.
Harrisburg, PA 17101

Bowman's Hill Wildflower Preserve
Route 32, River Road
New Hope, PA 18938

Art Gover
Roadside Research Project
Penn State University
University Park, PA 16802
(814) 863-1184

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Questions and feedback should be directed to Deirdre Remley (deirdre.remley@dot.gov, 202-366-0524).

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