feud, gall, hop, hops, pill, rue, salt, sharp, strife

absinthe, acerb, arishth, bitters, bogbean, brucine, buckbean, caffein, caffeine, crow corn, cruelly, dogbane, exchange, guinness, hyssop, jaundice, madnep, makin, neem tree, nim tree, old man, pale ale, pignut, prolonged, quinine, ragee, rancor, rancour, resent, scotch gale, sharp tongue, star grass, sweet gale, tansy, turf war

absinthe oil, acerbate, acerbic, aletris, almond oil, arginine, astringent, bigarade, bitterish, bitterness, bitternut, bitterwood, bitter dock, bitter end, bog myrtle, broad-leaved dock, cassareep, chicory, chokecherry, cola nut, colicroot, colic root, coracan, corakan, costmary, embitter, envenom, galbanum, herb of grace, invective, kola nut, kurakkan, lady's smock, marasca, margosa, marsh trefoil, meadow cress, motherwort, myrica gale, picris, quassia, ratafee, red devil, resentment, sardonic, saturnine, scented fern, seconal, strophanthin, sweet cherry, tarawa, vitriol, white horehound, wild parsnip, wormwood oil, yellow dock

acerbity, acrimony, amygdalin, angostura, araroba, bitterwood tree, bitter orange, bitter pecan, bitter pignut, black hickory, broccoli raab, broccoli rabe, brown hickory, cardamine, carya glabra, cherry laurel, chrysarobin, common horehound, common wormwood, cuckooflower, cuckoo flower, curly endive, finger millet, genus picris, goa powder, golden buttons, gum albanum, laurel cherry, maraschino, ratafia, sanguinary, seville orange, simarouba, sour orange, swamp hickory, sweet almond oil, tansy mustard, tributyrin, unicorn root, water shamrock, wild chamomile

african millet, angostura bark, bitter almond oil, bitter hickory, bitter orange tree, bitter principle, chokecherry tree, exacerbation, expressed almond oil, genus aletris, genus cardamine, german chamomile, justifiably, marasca cherry, marmalade orange, pignut hickory, proverbially, prunus avium, secobarbital, sodium sulfate, sodium sulphate, sweet false chamomile, tarawa-makin, vituperation, water bitternut, water hickory

bitternut hickory, cardamine pratensis, carya aquatica, carya cordiformis, genus simarouba, hydrogen cyanide, maraschino cherry, marrubium vulgare, quassia amara, quassia family, ruta graveolens, salicylic acid, simaroubaceae, tanacetum vulgare

leonurus cardiaca, menyanthes trifoliata, prunus virginiana

artemisia absinthium, azadirachta indica, descurainia pinnata, eleusine coracana, family simaroubaceae, gymnopilus spectabilis, melia azadirachta, prunus cerasus marasca, rumex obtusifolius, secobarbital sodium

matricaria chamomilla, matricaria recutita