General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Minimum cold hardiness: Zone 2 -45.6 °C (-50 °F) to -42.8 °C (-45°F)
Maximum recommended zone: Zone 7b
Plant Height: 6 - 12 inches
Plant Spread: 6 - 12 inches
Flowers: Showy
Flower Color: Blue
Bloom Size: 1"-2"
Flower Time: Summer
Late summer or early fall

Image
Common names
  • Mountain Bog Gentian
  • Rainier Pleated Gentian
  • Explorer's Gentian
Botanical names
  • Accepted: Gentiana calycosa
  • Synonym: Pneumonanthe calycosa

Photo Gallery

Date: 2010-08-27
Location: Absaroka Range in Wyoming
Date: 2013-07-25
Location: Absaroka Range in Wyoming
Date: 2013-07-25
Location: Lakes Trail, Mount Rainier National Park
Photo courtesy of: J.Brew
Location: Explorer's gentian (Gentiana calycosa) on Pacific Crest Trail south of Donner Pass
Date: 2009-08-18
Photo courtesy of: Miguel Vieira
Location: Mount Rainier National Park
photo credit: Walter Siegmund
Comments:
  • Posted by Johannian (The Black Hills, SD - Zone 4b) on Jan 9, 2022 6:37 PM concerning plant:
    Range: British Columbia south to the Sierra Nevada of California; east to the Rocky Mountains of Montana and Canada.

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