Spurge

But cockle, spurge, according to their law / Might propagate their kind, with none to awe, / You'd think; a burr had been a treasure trove.

A compound of spurge, cardamom, cinnamon of Mecca, pellitory, ginger, nettle seed is an Arab specific for sexual weakness.

The body's somthing noysome: 'tis a stale one; / Good troth it spurgeth very monstrously.