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Along the trail to Trestle Creek Falls, above Brice Creek in southern Lane County, I found a solitary, ancient rock sword fern ( Polystichum imbricans). It is a relictual plant, one that has survived from the time when this site was an open, rocky ridge. That’s the sunny habitat this species prefers. Over the last centuries a towering forest has closed in and this species is no longer reproducing here. These relictual oldsters are not hard to find because our regional forests have an average 500-year cycle of fire replacement.  Western sword fern ( Polystichum munitum) is one of only two or three forest understory species that survive total stand replacing fires in the forests on the west side of the Cascade Range. It means sword ferns are often older than old growth trees above them. Some of the monster ferns are certainly hundreds of years old.

Trestle creek fallsBrice creekLane countyLabor dayHoliday farm fireட்ரெஸ்ல் க்ரீக் விழும்பிரைஸ் க்ரீக்சந்து கவுண்டிதொழிலாளர் நாள்விடுமுறை பண்ணை தீ