laśunaṃ gṛñjanaṃ caiva palāṇḍuṃ kavakāni ca / abhakṣyāṇi dvijātīnām amedhyaprabhavāni ca //
Garlic, leeks and onions, mushrooms and (all plants), springing from impure (substances), are unfit to be eaten by twice-born men.