Page authors: Don Knoke, David Giblin
Polemonium viscosum
sticky Jacob's-ladder, sticky polemonium
Specimens
Photos

Distribution: Occurring east of the Cascades crest in Washington, where known only from Okanogan County. British Columbia to Oregon and Nevada, east to the Rocky Mountains.

Habitat: Open rocky places at high elevations in the mountains, commonly above timberline.

Flowers: July-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Sensitive in Washington (WANHP)

Pollination: Bumblebees

Description:
General:

Low perennial from a stout, branched taproot, the stem up to 2 dm. tall, strongly glandular and smelling of skunk.

Leaves:

Leaves mostly basal, pinnate, up to 1.5 dm. long including the short petiole; leaflets crowded, numerous, 2-5 cleft nearly to the base, the individual segments 1.5-6 mm. long and 1-3 mm. wide

Flowers:

Inflorescence capitate; calyx herbaceous, 7-12 mm. long, the 5 narrow, pointed lobes shorter than the tube; corolla blue, funnel-shaped, 17-25 mm. long, noticeably longer than wide, the tube longer than the 5 lobes; stamens shorter than the corolla; style 3-parted; ovary superior.

Fruits:

Capsule 3-celled.

Accepted Name:
Polemonium viscosum Nutt.
Publication: J. Acad. Nat. Sci. Philadelphia, ser. 2, 1: 154. 1848.

Synonyms & Misapplications:
Polemonium viscosum Nutt. ssp. genuinum Wherry
Polemonium viscosum Nutt. ssp. lemmonii (Brand) Wherry
Additional Resources:

PNW Herbaria: Specimen records of Polemonium viscosum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Polemonium viscosum checklist entry.

OregonFlora: Polemonium viscosum information.

E-Flora BC: Polemonium viscosum atlas page.

CalPhotos: Polemonium viscosum photos.

USDA Plants: Polemonium viscosum information.

14 photographs:
Group by