Raw flowerheads can be difficult to digest. Coriander Coriander sativum More info here . Makes a potent wine. Daylillies may act as a laxative. More info here .
Berries are highly poisonous.
Hyssop Hyssopus officinalis Should be avoided by pregnant women and by those with hypertension and epilepsy. More Info . Mint Mentha species More info here . Mustard Brassica species Eating in large amounts may cause red skin blotches. More info here .