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Common or tree chinquapin is the common name of castanea pumila. Illustrated are the nut and bur.

Chinquapin

Common or tree chinquapin is the common name of castanea pumila. Illustrated are the nut and bur.

Illustrated is a bur of hound's tongue, or cynoglossum.

Hound's Tongue

Illustrated is a bur of hound's tongue, or cynoglossum.