small perennial herb having bright blue or white flowers
anchusa of southern Africa having blue flowers with white throats
anchusa of southern Africa having blue to red-purple flowers
North American annual plant with usually yellow or orange flowers; grows chiefly on wet rather acid soil
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
be unable to remember
negation of a word or group of words
