Polemoniaceae
Western polemonium
Polemonium occidentale
- Family
- Polemoniaceae
- Genus
- Polemonium
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Common names
By language (2)
- Chinese
- 白花荵
- English
- Western polemonium, Western Jacob's ladder
Synonyms
- Polemonium acutiflorum subsp. occidentale (Greene) Hultén
- Polemonium caeruleum subsp. occidentale (Greene) J.F.Davidson
- Polemonium caeruleum var. occidentale (Greene) H.St.John
- Polemonium occidentale subsp. typicum Wherry
Flowers
- Flower colour
- purple (USDA PLANTS Database)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: Dcrjsr, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Superior National Forest, CC BY 2.0, from Wikimedia Commons 
Photo: Superior National Forest, CC BY 2.0, from Wikimedia Commons 
Photo: Superior National Forest, CC BY 2.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons
More in Polemonium
- Jacob's ladderPolemonium caeruleumPolemoniaceae
- Greek valerianPolemonium reptansPolemoniaceae
- Northern Jacob's-ladderPolemonium borealePolemoniaceae
- Jacob's-ladderPolemonium pulcherrimumPolemoniaceae
- Sticky polemoniumPolemonium viscosumPolemoniaceae
- Elegant Jacob's-ladderPolemonium elegansPolemoniaceae
- Tall Jacob's-ladderPolemonium villosumPolemoniaceae
- Towering Jacob's-ladderPolemonium foliosissimumPolemoniaceae
- Fewflower Jacob's-ladderPolemonium pauciflorumPolemoniaceae
- Vanbrunt's polemoniumPolemonium van-bruntiaePolemoniaceae
- Brandegee's Jacob's-ladderPolemonium brandegeeiPolemoniaceae
- Royal Jacob's-ladderPolemonium carneumPolemoniaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.