Cosmos sulphureus

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Scientific Name Cosmos sulphureus USDA PLANTS Symbol
COSU5
Common Name Sulphur Cosmos ITIS Taxonomic Serial No.
37165
Family Asteraceae (Sunflower) SEINet Reference
Click Here
Description Habitat Disturbed sites. Widespread introduced species native to Mexico.
Plant: Erect annual 1 to over 6 feet tall, smooth to somewhat hairy stems.
Leaves: Opposite, divided into two or three lobes, 2 to almost 5 inches long overall on petioles 3/8 to 2-3/4 inches long.
Inflorescence: Usually solitary bright orange or yellowish-red composite blossoms, 1-3/8 to 2-1/8 inches across atop peduncles 4 to 8 inches long; about 8 ray florets; yellow disk florets.
Blooming Period: Summer to fall.
References: Descr. adapted from "Manual of the Vascular Plants of Texas" by Correll and Johnston and Flora of North America.
Texas Status
Introduced

© Tom Lebsack 2018