Mt. Rainier

Mt. Rainier Flora -- Epilobium ciliatum -- (Common Willow-herb)

presented by Susan McDougall

Epilobium ciliatum

There are two subspecies of Common Willow-herb at the Park. They differ in leaf shape, petal length, and whether there are turions (a small bud, capable of growing into a plant)present. Both are plants of moist habitat. This is subspecies glandulosum in which the pink petals are as much as a half-inch in length.

Author: Susan McDougall
Longmire Meadow, Mount Rainier National Park
GPS: 46.751, -121.8146, 2718
Date: August 2, 2014
Epilobium ciliatum

The stems of subspecies glandulosum are branched, and the leaves are ovate.

Author: Susan McDougall
Stevens Canyon, Mount Rainier National Park
GPS: 46.7744, -121.7634, 4415
Date: July 1, 2016
Epilobium ciliatum

A white-flowered form of subspecies glandulosum.

Author: Susan McDougall
Longmire near the Nisqually River, Mount Rainier National Park
GPS: 46.7493, -121.8077, 2779
Date: July 12, 2014
Epilobium ciliatum

This is subspecies ciliatum. The petals are shorter, and turions are absent. The plants may reach three feet in height, and the leaves are elliptical.

Author: Susan McDougall
Sunshine Point, Mount Rainier National Park
GPS: 46.7386, -121.9127
Date: July 8, 2014

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