Fireweed, Great Willow-herb: Chamaenerion angustifolium (Synonyms:Chamerion angustifolium ssp. angustifolium, Chamerion angustifolium ssp. circumvagum, Chamerion angustifolium var. angustifolium, Chamerion angustifolium var. canescens, Chamerion danielsii, Chamerion platyphyllum, Chamerion spicatum, Epilobium angustifolium, Epilobium angustifolium ssp. circumvagum, Epilobium angustifolium ssp. macrophyllum, Epilobium angustifolium var. abbreviatum, Epilobium angustifolium var. canescens, Epilobium angustifolium var. intermedium, Epilobium angustifolium var. macrophyllum, Epilobium angustifolium var. platyphyllum, Epilobium spicatum)

The photo at left shows the general form of fireweed as seen along road #2329 at the East Fork Adams Creek on the northern slopes of Mt. Adams..........August 6, 2005. The photo at right shows a close-up of the inflorescence of fireweed still in bloom in burned forest along the Vista Ridge Trail, Mount Hood Wilderness.....October 5, 2022.

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Additional images of fireweed. The photo at left was photographed along the Island Springs Trail while that at center was photographed from Little Mount Adams..........August 13, 2012. The photo at right shows masses of fireweed going to seed in burned forest resulting from the 2020 Big Hollow Fire, Sister Rocks Research Natural Area.....September 8, 2023.

The photo at left shows fireweed as seen at the base of the north side of Little Mt. Adams..........August 8, 2004. The photo at right shows fireweed still in bloom along the East Crater Trail about one-half mile downhill to the northeast of East Crater, Indian Heaven Wilderness......September 22, 2022. This latter site was burned several years previously during the East Crater Fire.

Two photos showing close-up views of the flowers of fireweed as seen at about 4050' along a logging road atop the ridge dividing the Cougar and Dairy Creek drainages at the southeastern corner of Mt. Adams........July 10, 2005. Note the long white style with a 4-part stigma, with the stigma lobes coiled.

The photo above shows a stem leaf of fireweed as seen along Shorthorn Creek at about 5600' along the Shorthorn Trail #16 on the southern slopes of Mt. Adams........July 30, 2005. The leaves of this species are numerous and alternate along the stem.

The photo above shows a close-up view of the narrow sepals and broad petals of fireweed as seen at about 4050' along a logging road atop the ridge dividing the Cougar and Dairy Creek drainages at the southeastern corner of Mt. Adams.........July 10, 2005.

The photo above shows the long, linear fruit of fireweed as seen along road #23 at the Mt. Adams viewpoint at the southwestern corner of Mt. Adams.........August 6, 2005.