State or province

Pennsylvania

Pennsylvania, United States of America: 7 ecoregions. Each with its climate now and toward 2050, and its conservation tier.

Landscape and climate

Seven ecoregions reach Pennsylvania and four are in the Nature Imperiled tier. The Appalachian mixed mesophytic forests and Allegheny Highlands forests cover much of the west and north, the Appalachian-Blue Ridge forests the south-central ridges, the Northeastern Hardwoods the northeast, the Southern Great Lakes forests the Erie corner, and the Northeastern Coastal Forests and Mid-Atlantic US coastal savannas reach the southeast around Philadelphia. All but one are temperate broadleaf and mixed forests, so Pennsylvania is genuinely a forest state throughout, with the variation coming from elevation and ridge-and-valley topography rather than from a change of biome. Oak, hickory and maple with a deep spring understory is the working model nearly everywhere in it.

Native plants of Pennsylvania

Species in the catalog recorded as native to Pennsylvania, each with its climate-fit grade and planting guidance.

Adam's needle Allegheny blackberry American arborvitae American basswood American elderberry American hazelnut American holly American hophornbeam American persimmon American plum American red raspberry American sweetgum American sycamore Annabelle hydrangea Aromatic aster Arrowwood viburnum Bald cypress Balsam fir Beach plum Big bluestem Black cherry Black chokeberry Black oak Black walnut Black willow Black-eyed Susan Blackhaw viburnum Bloodroot Blue false indigo Blue flag iris Blue vervain Boneset Boxelder Bur oak Butterfly weed California poppy Canada anemone Canada lily Canadian serviceberry Cardinal flower Carolina allspice (sweetshrub)Chestnut oak Chinkapin oak Chokecherry Christmas fern Colorado blue spruce Common blue violet Common hackberry Common hops Common juniper Common milkweed Common ninebark Common sunflower Common witch hazel Common yarrow Cutleaf coneflower Dense blazing star Dwarf crested iris Eastern cottonwood Eastern prickly pear Eastern red cedar Eastern redbud Eastern white pine Flowering dogwood Foamflower Fox grape Foxglove beardtongue Golden alexanders Gray birch Gray dogwood Green hawthorn Groundnut Hairy alumroot Hardy hibiscus Highbush blueberry Honey locust Indian grass Inkberry Jack pine Lady fern Lanceleaf coreopsis Largeflower tickseed Little bluestem Mapleleaf viburnum Marginal wood fern Mayapple Maypop (purple passionflower)Mountain laurel Nannyberry New England aster New York ironweed Northern maidenhair fern Northern red oak Northern spicebush Ohio buckeye Orange coneflower Ostrich fern Pagoda dogwood Paper birch Pawpaw Pinxter azalea Plains coreopsis Possumhaw viburnum Post oak Prairie dropseed Pussy willow Quaking aspen Ramps Red maple Red mulberry Red pine Red spruce Red-osier dogwood River birch River oats Sassafras Scarlet bee balm Shagbark hickory Short-toothed mountain mint Side-oats grama Silky dogwood Silver maple Smooth blue aster Southern red oak Spotted Joe-Pye weed Stiff goldenrod Sugar maple Summersweet (sweet pepperbush)Sunchoke Swamp milkweed Swamp sunflower Swamp white oak Sweet Joe-Pye weed Sweetbay magnolia Switchgrass Trumpet honeysuckle Tulip tree (yellow poplar)Virginia iris Virginia sweetspire White oak White wood aster Whorled milkweed Wild bergamot Wild geranium Wild lupine Wild senna Wild strawberry Willow oak Woodland phlox Yellow birch Yellow buckeye

Country

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United States of America

Ecoregions here

Allegheny Highlands forests Appalachian mixed mesophytic forests Appalachian-Blue Ridge forests Mid-Atlantic US coastal savannas Northeastern Coastal Forests Northeastern Hardwoods Southern Great Lakes forests