ice plant: Old World annual widely naturalized in warm regions having white flowers and fleshy foliage covered with hairs that resemble ice
fig marigold: any of several South African plants of the genus Mesembryanthemum cultivated for showy pink or white flowers
rem: (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays