[UN-1 8 + STEM v.4 3 a.] Not having the stalk and midrib removed.
1883. J. R. Dodge, Manuf. Tobacco, iii. 24. The law established the rate at 5 cents per pound for unstemmed smoking, with 2 cents for stemmed.
1894. Times, 16 Aug., 6/5 (U.S. tariff). Wrapped tobacco, unstemmed.