This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain.
雲杉
AOEF、biology、black_and_white、botany、externalsource、line_art、outline、plants、psf、spruce、tree、vintage by fb、wikimedia_commons
AOEF、生物學、黑與白、植物學、外部源、線條藝術、大綱、植物、PSF、雲杉、樹、由fb復古、維基媒體公地
資料來源：openclipart ( https://openclipart.org/ )