Packera streptanthifolia

(Rocky Mountain Groundsel)

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Packera streptanthifolia, Hoosier Pass, Park Co. 5265

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Packera streptanthifolia, Peak 7, Summit Co. 7113

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Packera streptanthifolia, Peak 7, Summit Co. 7104

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Packera streptanthifolia, Hoosier Pass, Park Co. 5269

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Packera streptanthifolia, Hoosier Pass, Park Co. 5262

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Packera streptanthifolia, Peak 7, Summit Co. 7099

Scientific Name Packera streptanthifolia USDA PLANTS Symbol PAST10
Common Name Rocky Mountain Groundsel, Cleft-leaf Groundsel ITIS Taxonomic Serial No. 518158
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Foothills to subalpine (6500 to 11500 ft.); woodlands and open areas.
Plant: Erect perennial 4 to 20+ inches tall; 1 or a few smooth or slightly hairy stems.
Leaves: Basal leaves spatulate to oblanceolate, or ovate to orbiculate, 3/4 to 1-1/2 inches long and petiolate, edges smooth crenate, dentate, or weakly lobed; stem leaves much fewer and smaller, oblanceolate to more linear, toothed or cleft edges.
Inflorescence: Cluster of a few to several composite heads about 1 inch across; 8 to 13 yellow to orange ray flowers with indented tips; dark orange disk florets; smooth green bracts sometimes purplish and hairy at the tips; bright white pappus hairs.
Bloom Period: June to August.
References: "Flora of Colorado" by Jennifer Ackerfield, Burke Museum of Natural History and SEINet.
BONAP Distribution Map


Map Color Key
Colorado Status:
Native

© Tom Lebsack 2022

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