Asteraceae
Fruits:Logfia filaginoides, each of the two types (with and without papillae), plus a partial ring of bristles; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruit: Onopordum acanthium, with an inset of the fruit's 4-sided cross-section; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID
Asteraceae
Fruit: Onopordum illyricum, A, Fruit; B, longitudinal section of fruit showing embryo; C, transection of fruit; Illustration by L.E. Chandler
Asteraceae
Fruit, seed: Xanthium strumarium, showing dissected fruit with seed intact; Photo by D. Walters and C. Southwick, Table Grape Weed Disseminule ID