Polypodium virginianum Rock Cap Fern
Native To: New York City Wetland Indicator: UPL Soil: pH < 6.8
Form/Color Evergreen, grows to 1' or less, spores Stormwater Insufficient information to determine
June-October. Tolerance: tolerance.
Urban Tolerant of soil compaction.
Tolerance:
Habitat: Moist to dry shade, in thin, circumneutral
soils on glacial erratics in rocky woods,
sometimes on banks, tree bases, old Ecosystem
Services:
logs, limestone cliffs.
Hydrology: Tolerant of drought and moist, well-
drained soil.
Ornamental Persistent leathery fronds that will
Value: colonize on rocky areas. Compatibility:
Salt Insufficient information to determine
Tolerance: tolerance. Other: Exploitably vulnerable in New York
state. Secondary species for
Shade Tolerant of shade. increased diversity.
Tolerance:
Polystichum acrostichoides Christmas Fern
Native To: New York City Wetland Indicator: FACU- Soil: pH 5.0-7.0
Form/Color Evergreen groundcover, fronds clustered, Stormwater Insufficient information to determine
tall, bushy, 1-3', spores May-October. Tolerance: tolerance.
Urban Somewhat tolerant of urban pollution.
Tolerance:
Habitat: Rich soil of wooded slopes with minimal
deep leaf litter, rocky slopes.
Ecosystem
Services:
Hydrology: Tolerant of drought, prefers well-drained
soil.
Ornamental Clustered persistent fronds that thrive on
Value: slopes. Compatibility:
Salt Insufficient information to determine
Tolerance: tolerance. Other: Minor species for increased diversity.
Shade Tolerant of shade.
Tolerance: