1. 円錐形のとげの中に単性の花と厚い水分の多い葉をもつ新世界の温暖地域の低く成長する強い匂いをもった沿岸地域の低木(low-growing strong-smelling coastal shrub of warm parts of the New World having unisexual flowers in conelike spikes and thick succulent leaves)
2. 旧世界の塩分を含む沼地や海岸のやぶ状の植物で、とげのある葉を持つ(bushy plant of Old World salt marshes and sea beaches having prickly leaves)