Cerastium arvense ssp. strictum

(Alpine Chickweed)

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Cerastium arvense ssp. strictum, Mt. Antero, Chaffee Co. 6183

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Cerastium arvense ssp. strictum, FR 679, Ophir Pass Road, San Juan Co. 8470

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Cerastium arvense ssp. strictum, FR 679, Ophir Pass Road, San Juan Co. 8472

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Cerastium arvense ssp. strictum, FR 679, Ophir Pass Road, San Juan Co. 8477

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Cerastium arvense ssp. strictum, FR 679, Ophir Pass Road, San Juan Co. 8478

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Cerastium arvense ssp. strictum, Crystal Lakes, Summit Co. 1092

Scientific Name Cerastium arvense ssp. strictum USDA PLANTS Symbol CEARS2
Common Name Alpine Chickweed, Alpine Mouse-ear ITIS Taxonomic Serial No. 523825
Family Caryophyllaceae (Pink) Flora of North America Ref. Click Here
Description Life zones and habitat: Foothills to alpine (5200 to 14000 ft.); open areas, rocky areas, hillsides, meadows.
Plant: Erect perennial with weak stems 2 to 8 inches tall growing in patches.
Leaves: Narrow stem leaves are linear or lanceolate to oblong, 1/4 to 1 inch long, deeply veined, with pointed tips; almost smooth to softly pubescent-hairy, sometimes glandular. Small tufts of leaves in lower leaf axils.
Inflorescence: Clusters of small white flowers atop somewhat hairy pedicels, each about 1/2-inch across with 5 deeply notched petals and yellow-green throat, 2 times as long as sepals; softly pubescent sepals, narrowly lanceolate to lance-elliptic.
Bloom Period: May to August.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel, SW Colorado Wildflowers and Flora of North America.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2022

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