[Cottongrass: The Genus Eriophorum in Mount Adams Country]

Slender Cottongrass

Eriophorum gracile

Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile

Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile)

Slender cottongrass as seen in wetlands along the Willard Springs Trail, Conboy Lake National Wildlife Refuge..........May 24, 2016.

Inflorescence (showing the anthers) of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile) - Inflorescence of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile)

Inflorescence of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile) - Habitat of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile)

Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile) - Inflorescence of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile)

Inflorescence of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile) - Inflorescence of Slender Cottongrass: Eriophorum gracile (Synonyms: Eriophorum gracile var. caurianum, Eriophorum gracile var. gracile)

Slender cottongrass as seen in wetlands along the Willard Springs Trail, Conboy Lake National Wildlife Refuge..........May 24, 2016. Note the single bract (which is shorter than theseveral to many spikes) subtending the inflorescence which helps to identify this species.

Thinleaf Cottonsedge, Tassel Cottongrass: Eriophorum viridicarinatum (Synonyms: Eriophorum latifolium, Eriophorum latifolilum var. viridicarinatum) - Thinleaf Cottonsedge, Tassel Cottongrass: Eriophorum viridicarinatum (Synonyms: Eriophorum latifolium, Eriophorum latifolilum var. viridicarinatum)

A close-up of the inflorescence of what might beslender cottonsedge as seen wetlands in Conboy Lake, NWR..........May1, 2015. Note the promient scale midribs, which seem to get wider at and extend to their tips, and note the scarious margins, at least on the lower scales.

The photo above shows a close-up of the inflorescence of slender cottonsedge as seen in wetlands in Conboy Lake, NWR..........June 9, 2007. The bracts are shorter than the inflorescence. Note the prominent midrib on those scales that are visible.

Paul Slichter