|Scientific Name||Grindelia squarrosa var. squarrosa||USDA PLANTS Symbol||GRSQ|
|Common Name||Curlycup Gumweed||ITIS Taxonomic Serial No.||37472|
Life zones and habitat: Plains and foothills (3500 to 8500 ft.); dry soils in open areas, roadsides, disturbed sites.
Plant: Perennial or biennial, 4 to 40 inches tall; stems erect or occasionally lying on the ground; usually whitish-green, sometimes reddish or grayish, and smooth.
Leaves: Alternate, oblong to oblanceolate, glandular surfaces, 5/8 to 2-3/4 inches long with crenulate-serrate. with short teeth.
Inflorescence: Composite flower heads in clusters, 1 to 2+ inches across with 25 to 40 yellow rays surrounding the center of 25 to 40 yellow disk florets; phyllaries in 5-6 series, recurved to appressed, fleshy.
Bloom Period: June to October.
References: "Flora of Colorado" by Jennifer Ackerfield and SEINet.
|BONAP Distribution Map
Map Color Key
© Tom Lebsack 2022
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County