[The Phlox Family in Denali National Park and Preserve]

Northern Jacob's-ladder, Northern Jacob's Ladder

Polemonium boreale ssp. boreale

Synonyms: Polemonium boreale ssp. richardsonii, Polemonium boreale var. villosissimum

Northern Jacob's-ladder, Northern Jacob's Ladder: Polemonium boreale ssp. boreale (Synonyms: Polemonium boreale ssp. richardsonii, Polemonium boreale var. villosissimum)

Northern jacob's ladder from atop Thoro Ridge, Denali National Park and Preserve...........June 23, 2002.

Northern Jacob's-ladder, Northern Jacob's Ladder: Polemonium boreale ssp. boreale (Synonyms: Polemonium boreale ssp. richardsonii, Polemonium boreale var. villosissimum)

Northern jacob's ladder from atop Thoro Ridge, Denali National Park and Preserve...........June 23, 2002.

Pinnately compound leaf of Northern Jacob's-ladder, Northern Jacob's Ladder: Polemonium boreale ssp. boreale (Synonyms: Polemonium boreale ssp. richardsonii, Polemonium boreale var. villosissimum)

Leaf of northern jacob's ladder, from Thoro Ridge, Denali National Park and Preserve.........June 23, 2002.

Northern Jacob's-ladder, Northern Jacob's Ladder: Polemonium boreale ssp. boreale (Synonyms: Polemonium boreale ssp. richardsonii, Polemonium boreale var. villosissimum)

Paul Slichter