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Rainbow Bridge National Monument

(Encyclopedia) Rainbow Bridge National Monument, 160 acres (65 hectares), S Utah; est. 1910. Rainbow Bridge, the largest natural bridge in the world, is a symmetrical, pink, sandstone arch, 309 ft (…

litmus

(Encyclopedia) litmus, organic dye usually used in the laboratory as an indicator of acidity or alkalinity (see acids and bases). Naturally pink in color, it turns blue in alkali solutions and red in…

trillium

(Encyclopedia) trillium or wake-robintrilliumtrĭlˈēəm [key], any plant of the large genus Trillium, attractive spring wildflowers of the family Liliaceae (lily family), native to North America and E…

leadwort

(Encyclopedia) leadwortleadwortlĕdˈwôrt, –wərt [key], common name for the Plumbaginaceae, a family of perennial herbs and shrubs usually found in semiarid regions, especially of the Mediterranean…

Hirshhorn Museum and Sculpture Garden

(Encyclopedia) Hirshhorn Museum and Sculpture Garden, Washington, D.C. Part of the Smithsonian Institution, the museum was designed by Gordon Bunshaft to house 6,000 pieces of the enormous art…

sidewinder

(Encyclopedia) sidewinder, common name for a rattlesnake, Crotalus cerastes, found in the deserts of the SW United States. This 2-ft (60-cm), pale yellow and pink snake is named for its curious…

albino

(Encyclopedia) albinoalbinoălbīˈnō [key] [Port.,=white], animal or plant lacking normal pigmentation. The absence of pigment is observed in the body covering (skin, hair, and feathers) and in the…

hepatica

(Encyclopedia) hepaticahepaticahĭpătˈĭkə [key] or liverleaf, any plant of the genus Hepatica of the family Ranunculaceae (buttercup family), low, woodland, spring wildflowers of the north temperate…

tamarisk

(Encyclopedia) tamarisktamarisktămˈərĭsk [key], shrub or small tree of the genus Tamarix, native chiefly to the Mediterranean area and to central Asia. The plants are often heathlike and thrive in…