The Central Rocky Mts. of Colorado and the Rocky Mts. Front Range have much in common with the Alps, including a typical holarctic flora.

1 - Niwot Ridge, Rocky Mts. Front Range, near Boulder at 3500 m elevation.

2 - Erigeron sp. (Asteraceae) (Niwot Ridge, 3250 m)

3 - Sedum lanceolatum (Crassulaceae) on Niwot Ridge, end of season (3500 m).

4 - Thlaspi sp. (Brassicacea), end of season (Niwot Ridge, 3500 m).

5 - Rocky Mountain National Park, Colorado

6 - Lush low alpine meadows.

7 - Aquilegia sp. (Ranunculaceae), above treeline (3400 m).

29 August 2011
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