[Willowherbs and Spike-primroses: The Genus Epilobium in the Cascade Mountains of Oregon and Washington]

Dense-flower Willow-herb

Epilobium densiflorum

Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum

Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum) - Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum)

The photo above shows a close-up of the flowers of dense-flower willow-herb as seen along Laurel Road in Conboy Lake NWR..........August 11, 2008.

Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum) - Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum)

Two close-up images of the flowers of dense-flower willow-herb as seen along Laurel Road in Conboy Lake NWR........August 11, 2008. This specimen is much stouter (thicker) than the typical members of this species found in the area.

Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum)

The photo above shows a close-up of the stem leaves of dense-flower willow-herb as seen along Laurel Road in Conboy Lake NWR..........August 11, 2008.

Inflorescence of Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum) - Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum) - Inflorescence of Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum)

Dense-flower willow-herb as seen in a drying riparian area along Lakeside Road in Conboy Lake NWR.........July 2, 2007.

Dense-flower Willow-herb: Epilobium densiflorum (Synonyms: Boisduvalia densiflora, Boisduvalia densiflora ssp. pallescens, Boisduvalia densiflora var. densiflora, Boisduvalia densiflora var. salicina, Boisduvalia densiflora var. salina, Oenothera densiflorum)

The photo above shows dense-flower willow-herb as seen in a drying riparian area along road K1000 to the east of the Mt. Adams Highway on the east side of Mt. Adams........June 17, 2007.

Paul Slichter