Hazelnut Illustration - Botanical Drawing of Corylus avellana #131634 (License: Personal Use)

This precise pen-and-ink illustration captures the characteristic features of common hazelnuts (Corylus avellana): spiny, leaf-like bracts enclosing the developing nuts and the smooth, ridged surface of the mature shelled nut. The fine cross-hatching emphasizes depth, texture, and natural form, reflecting traditional scientific illustration techniques used in 19th- and early 20th-century botanical texts.

Used in educational content about edible wild plants, nut cultivation guides, herbal medicine resources, or historical botany archives; targets users seeking accurate visual identification or vintage-style botanical art.