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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Polemonium occidentale ssp. occidentale

Polemonium occidentale Greene ssp. occidentale

Western Polemonium, Great Polemonium, Western Jacob's Ladder, Western Jacob's-ladder, Western Sky Pilot

Polemoniaceae (Phlox family)

Synonym(s): Polemonium caeruleum ssp. amygdalium, Polemonium caeruleum ssp. occidentale, Polemonium caeruleum var. pterospermum, Polemonium helleri, Polemonium intermedium, Polemonium occidentale ssp. amygdalium, Polemonium occidentale ssp. typicum

USDA Symbol: POOCO

USDA Native Status: L48 (N), CAN (N)

 

From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 3 feet tall.

Bloom Information

Bloom Color: Blue , Purple
Bloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: Blue to purplish.

Distribution

USA: CA , CO , ID , MT , NM , NV , OR , UT , WA , WY
Canada: AB , BC
Native Habitat: Moist to wet areas, meadows, streambanks.

Web Reference

Webref 62 - Burke Herbarium Image Collection (2020) University of Washington
Webref 30 - Calflora (2018) Calflora
Webref 36 - Jepson eFlora (2019) The Jepson Herbarium, University of California, Berkeley
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Polemonium occidentale ssp. occidentale in USDA Plants
FNA: Find Polemonium occidentale ssp. occidentale in the Flora of North America (if available)
Google: Search Google for Polemonium occidentale ssp. occidentale

Metadata

Record Modified: 2021-06-25
Research By: CBR

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