Senecio serra var. admirabilis

(Sawtooth Ragwort)

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0796

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0791

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0789

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0802

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0804

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Senecio serra var. admirabilis, Along Hwy 65 near Inland Lake, Grand Mesa NF, Delta Co. 0805

Scientific Name Senecio serra var. admirabilis USDA PLANTS Symbol SESEA
Common Name Saw-tooth Ragwort, Tall Ragwort ITIS Taxonomic Serial No. 530331
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Foothills and montane (6200 to 10500 ft.); forest openings, meadows, streamsides.
Plant: Erect perennial 20 inches to over 6 feet tall, single or loosely clustered stems, mostly hairless.
Leaves: Evenly distributed, alternate, oblanceolate to lanceolate or elliptic, 3 to 6 inches long and 3/8 to 1-1/2 inches wide, petiolate or nearly sessile; margins with many small teeth (serrate).
Inflorescence: Many (12 to 50) composite flower heads in corymbiform or panicle-like arrays; ~8 yellow rays and 20 to 40 or more disk florets; ~13 green, dark-tipped phyllaries and 2 to 6 thin bractlets below.
Bloom Period: July to September.
References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America and American Southwest.
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