aromatic potherb used in cookery for its savory qualities | North American annual plant with usually yellow or orange flowers; grows chiefly on wet rather acid soil |
a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests | Mediterranean vine having oblong fruit that when ripe expels its seeds and juice violently when touched |
| prostrate or semi-erect subshrub of tropical America, and Australia; heavily armed with recurved thorns and having sensitive soft grey-green leaflets that fold and droop at night or when touched or cooled |