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A listing of common shade perennials for alkaline sites, native to Pennsylvania

Common Pennsylvania shade perennials, 7-8 pH

Note: the column Cty relates to whether the species is native to Monroe County, Pennsylvania; all others are native to Pennsylvania

Latin	Common	Indic.	Notes	Cty
Asplenium platyneuron	Ebony Spleenwort	FACU	Gravelly and stony soils, light shade, throughout, 5-7.5 pH	yes
Asplenium rhizophyllum	Walking Fern	NI	Shaded limestone, moss-covered outcrops, all but NW counties, 6.5-7.5 pH	yes
Asplenium scolopendrium	Hartstongue Fern	NI	Moist sandy loam, part shade to dappled sunlight ; scattered NE states, threatened/endangered	no
Asplenium trichmanes	Maidenhair Spleenwort	NI	Moist, shady, ledges, south and east counties, 4.5-7.5 pH	yes
Cardamine douglassii	Douglass Bittercress	FACW+	Low or swampy woodlands, mostly western counties, 6.5 - 7.5 pH	no
Cypripedium candidum	Small White Ladyslipper	OBL	Humus rich muck, extirpated; Lancaster Cty, 6.5-7.5 pH	no
Cystopteris bulbifera	Berry Bladderfern	FAC	Shaded limestone-rich cliffs & outcroppings, common, 6.5-7.5 pH	yes
Cystopteris fragilis	Brittle Bladderfern	FACU	Humus rich moist soil, tending to higher ph; common, 6.5-7.5 pH	no
Diplazium pycnocarpon	Narrow-Leaf Glade Fern	FAC	Rich, consistently moist, well-drained soils in part shade to full shade, mostly northern counties, 6-7.5 pH	yes
Dryopteris intermedia	Common Woodfern	FACU	Moist shady rocky woods, humus rich, throughout, 4.5-7.5 pH	yes
Matteuccia struthiopteris	Ostrich Fern	FACW	Mountains of central and northern PA.; light shade on rocky stream banks, forming extensive colonies, 5-7.5 pH	yes
Onoclea sensibilis	Sensitive Fern	FACW	Wet meadows, thickets, woods, streambanks, swamps and bogs, 4.5-7.5 pH	yes
Pellaea atropurpurea	Purple Cliffbake	NI	Crevices of limestone and dolomite outcrops, bluffs, boulders, and sinkholes. Sometimes in dry soils adjacent to dolomite glades, mostly toward SE Pa, 6.5-7.5 pH	yes
Phacelia purshi	Miami Mist	NI	Low rich woods, gravel bars, moist thickets, moist slopes, SW, SE, 7 pH	no
Polystichum braunii	Braun Hollyfern	NI	Cool, moist, shaded places in boreal forests and northern deciduous woods; also rocky slopes and moist cliffs; endangered, 4 NE counties, 6.5-7.5 pH	no
Trillium nivale	Dwarf Trillium	NI	Mesic upland forests on steep, open, north-facing slopes above streams and rivers - on limestone and chert substrates, SW counties, 7 pH	no
Woodsia obtusa	Common Woodsia	NI	Shaded cliffs and rocky slopes, especially in limy or neutral soil; all but NW counties, 6-7.5 pH	yes