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Contact Info

Dr. Misha Manuchehri
371 Agricultural Hall
Oklahoma State University
Stillwater, OK 74078

Phone: (405) 744-9588
FAX: (405) 744-0354

Sida spinosa (prickly sida)

prickly sida
Sida spinosa                                    

Identifying Characteristics:

Seed:  triangular shaped with two spine-like projections at the apex; short spines on projections; brown to reddish brown in color; “mountain goat head”

Seedling:  oval to lanceolate leaves with serrated margins; softly pubescent stem; short spines form at the base of leaf blades

Mature Plant: erect, branching growth habit; single, small flower in leaf axils; yellow in color; will create rounded seed pod

Method of Propagation: seed

Life Cycle: warm-season annual

References: Abaye, A. Ozzie. "Identification & Adaption: Common Grasses, Legumes & Non-leguminous Forbs of the Eastern United States."
Bryson, Charles T. & Michael S DeFelice. "Weeds of the Midwestern United States & Central Canada."

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