Polemonium foliosissimum

(Leafy Jacob’s Ladder)

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Polemonium foliosissimum, Buzzard Divide Rd., Gunnison National Forest, Mesa Co. 4108

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Polemonium foliosissimum, Newcastle-Buford Rd, White River Plateau, Garfield Co. 6162/6171

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Polemonium foliosissimum, Newcastle-Buford Rd, White River Plateau, Garfield Co. 6151

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Polemonium foliosissimum, FR 630, Ophir Pass Rd., San Miguel Co. 8658

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Polemonium foliosissimum, FR 630, Ophir Pass Rd., San Miguel Co. 8676

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Polemonium foliosissimum, Buzzard Divide Rd., Gunnison National Forest, Mesa Co. 4097

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Polemonium foliosissimum, Hwy 65, Grand Mesa, Mesa Co. 2580

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Polemonium foliosissimum, Buzzard Divide Rd., Gunnison National Forest, Mesa Co. 4106

Scientific Name Polemonium foliosissimum USDA PLANTS Symbol POFO
Common Name Leafy Jacob's Ladder, Towering Jacob's Ladder ITIS Taxonomic Serial No. 31012
Family Polemoniaceae (Phlox) SEINet
Reference
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Description Life zones and habitat: Foothills to alpine (6500 to 13000 ft.); streamsides, meadows, and open woodlands.
Plant: Perennial 20 to 48 inches tall with single or multiple, leafy stems.
Leaves: Stem leaves 1-1/4 to 4 inches long, pinnately-divided into many (11-25) lanceolate, ovate, or elliptic leaflets, each 3/8 to 1-1/4 inches long, smooth to sparsely pubescent or glandular; upper 3 to 5 leaflets confluent.
Inflorescence: Terminal, compact cymes of a few to many bell-shaped blue-violet to white or pale yellow flowers; corolla with 5 rounded lobes 3/8 to 5/8-inch long; yellow anthers atop white stamens; white style extends almost beyond the corolla; 5 pointed, hairy sepals below the corolla tube.
Bloom Period: June to August.
References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest and SEINet.
BONAP Distribution Map
Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County