Aleutian Holly Fern 🛑 Endangered

Polystichum lachenense

Aleutian Holly Fern

Boylan, Mike - U.S. Fish and Wildlife Service

Taxonomy

Division:
Pteridophyta | - Ferns
Family:
Polypodiaceae
Genus:
Polystichum
Species:
Polystichum lachenense

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
6 in - 1 ft
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Colors:
Not Applicable
Ground Cover:
Yes

Native Range

United States: Alaska

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers shaded, forested areas