found: Work cat.: Green, R.J. Mint farming, 1963:p. 4 (spearmint) p. 5 (common spearmint (Mentha spicata))
found: Web. 3(spearmint (Mentha spicata))
found: Mabberley, D.J. The plant-book, c1997:p. 674 (spearmint, Mentha spicata)
found: Hortus 3(Mentha spicata. Spearmint)
found: The Amer. Hort. Soc. A-Z encyc. of garden plants, 1997(Mentha spicata, syn. M. viridis. Spearmint)
found: Brako, L. Sci. and common names of 7,000 vascular plants in the U.S., 1995:p. 49 (Mentha spicata - spearmint)
found: ITIS, Apr. 30, 2000(Mentha spicata. Common name: spearmint. Synonyms: Mentha cordifolia, Mentha longifolia, Mentha viridis)
found: PLANTS database, via WWW, Apr. 30, 2000(Mentha spicata, spearmint. Synonyms: Mentha cordifolia, Mentha longifolia, Mentha viridis)
found: GRIN taxonomy, via WWW, Apr. 30, 2000(Mentha spicata. Common name: spearmint. Synonyms: Mentha aquatica var. crispa, Mentha cordifolia, Mentha crispa, Mentha spicata var. ciliata, Mentha spicata var. crispa, Mentha spicata var. viridis, Mentha viridis, Mentha x villosa var. cordifolia)