[The Sunflower Family in Denali National Park and Preserve]

Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot

Petasites frigidus var. frigidus

Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus

Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

Frigid coltsfoot as seen on tundra slopes where the snow laid late into the spring at the western base of Green Dome, Denali National Park and Preserve............June 20, 2012.

Close-up view of the inflorescence of Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus) - Close-up view of the inflorescence of Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

Close-ups of the inflorescence of frigid coltsfoot as seen on tundra slopes where the snow laid late into the spring at the western base of Green Dome, Denali National Park and Preserve............June 20, 2012.

Basal leaf of Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

The photo above shows the attractive basal leaf of frigid coltsfoot as seen in woods next to the train station at the entrance to Denali National Park..................August 22, 2006.

Basal leaves of Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

A close-up of the basal leaves of frigid coltsfoot from east of Highway Pass, Denali National Park..................August 24, 2006. The leaves are turning purple shortly after experiencing the season's first snows.

Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

Frigid coltsfoot as seen along the Taiga Trail at Camp Denali several miles north of Wonder Lake, Denali National Park and Preserve............June 19, 2012.

Inflorescence of Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

The inflorescence of frigid coltsfoot from atop the ridge to the west of Wonder Lake, Denali National Park...............June 25, 2002.

Arctic Sweet Coltsfoot, Arrowleaf Sweet Coltsfoot, Frigid Coltsfoot: Petasites frigidus var. frigidus (Synonyms: Petasites alaskanus, Petasites corymbosus, Petasites frigidus ssp. nivalis, Petasites frigidus var. corymbosus, Petasites frigidus var. hyperboreoides, Petasites frigidus var. nivalis, Petasites gracilis, Petasites hyperboreus, Petasites nivalis, Petasites nivalis ssp. hyperboreus)

The attractive leaf of frigid coltsfoot as seen on moist tundra on the northwest facing slopes of Thorofare Mt., Denali National Park and Preserve.....................September 7, 2009.

Paul Slichter