Quick answer: 52 butterfly and moth host plants are native to Pennsylvania, 47 with a live listing as of 16 Sep 2026.
52 species
- American holly Ilex opaca · 24 states
- American hornbeam Carpinus caroliniana · 29 states
- Big bluestem Andropogon gerardii · 25 states
- Black cherry Prunus serotina · 32 states
- Black walnut Juglans nigra · 33 states
- Black-eyed Susan Rudbeckia hirta · 42 states
- Bur oak Quercus macrocarpa · 24 states
- Butterflyweed Asclepias tuberosa · 37 states
- Canada wild rye Elymus canadensis · 18 states
- Chinkapin oak Quercus muehlenbergii · 14 states
- Chokecherry Prunus virginiana · 35 states
- Common persimmon Diospyros virginiana · 17 states
- Eastern hemlock Tsuga canadensis · 22 states
- Eastern red columbine Aquilegia canadensis · 36 states
- Fireweed Chamerion angustifolium · 28 states
- Flowering dogwood Cornus florida · 22 states
- Gray birch Betula populifolia · 9 states
- Honey locust Gleditsia triacanthos · 9 states
- Indiangrass Sorghastrum nutans · 19 states
- Kentucky coffeetree Gymnocladus dioicus · 15 states
- Little bluestem Schizachyrium scoparium · 23 states
- Mockernut hickory Carya tomentosa · 13 states
- Mountain laurel Kalmia latifolia · 17 states
- Nannyberry Viburnum lentago · 23 states
- New England aster Symphyotrichum novae-angliae · 18 states
- New Jersey tea Ceanothus americanus · 31 states
- Northern red oak Quercus rubra · 24 states
- Pagoda dogwood Cornus alternifolia · 25 states
- Paper birch Betula papyrifera · 16 states
- Pawpaw Asimina triloba · 17 states
- Pearly everlasting Anaphalis margaritacea · 18 states
- Pin cherry Prunus pensylvanica · 3 states
- Pin oak Quercus palustris · 18 states
- Pitch pine Pinus rigida · 12 states
- Post oak Quercus stellata · 9 states
- Quaking aspen Populus tremuloides · 24 states
- Red maple Acer rubrum · 30 states
- Red pine Pinus resinosa · 13 states
- Sassafras Sassafras albidum · 22 states
- Shortleaf pine Pinus echinata · 9 states
- Showy tick trefoil Desmodium canadense · 21 states
- Sideoats grama Bouteloua curtipendula · 25 states
- Sundial lupine Lupinus perennis · 25 states
- Sweetbay magnolia Magnolia virginiana · 12 states
- Switchgrass Panicum virgatum · 24 states
- Tamarack Larix laricina · 10 states
- Trumpet vine Campsis radicans · 24 states
- Tulip tree Liriodendron tulipifera · 17 states
- Virginia creeper Parthenocissus quinquefolia · 27 states
- White ash Fraxinus americana · 31 states
- White heath aster Symphyotrichum ericoides var. ericoides · 10 states
- White oak Quercus alba · 33 states