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rocket, in botany

(Encyclopedia)rocket, in botany, popular name for several plants of the family Cruciferae (or Brassicaceae; mustard family). The dame's, or damask, violet, damewort, or sweet rocket is Hesperis matronalis, a hardy,...

propagation of plants

(Encyclopedia)propagation of plants is effected in nature chiefly sexually by the seed and the spore, less often by rhizomes and other methods (see reproduction). Vegetative means include cutting, layering, graftin...

Newhouse, Samuel Irving

(Encyclopedia)Newhouse, Samuel Irving, 1895–1979, American newspaper and magazine publisher, b. New York City as Solomon Neuhaus, known generally as Sam. From 1922 to the 1970s, his Advance Publications acquired ...

Topeka

(Encyclopedia)Topeka təpēˈkə [key], city (1990 pop. 119,883), state capital and seat of Shawnee co., NE Kans., on the Kansas River; inc. 1857. In a rich agricultural region, it is an important shipping point fo...

pruning

(Encyclopedia)pruning, the horticultural practice of cutting away an unwanted, unnecessary, or undesirable plant part, used most often on trees, shrubs, hedges, and woody vines. Man uses pruning to remove diseased ...

Ayckbourn, Sir Alan

(Encyclopedia)Ayckbourn, Sir Alan ākˈbôrn [key], 1939–, English playwright and director, b. London. One of Britain's most successful and prolific dramatists, he had his first play produced in 1959 and since th...

Central Park

(Encyclopedia)Central Park, 840 acres (340 hectares), the largest park in Manhattan, New York City; bordered by 59th St. on the south, Fifth Ave. on the east, 110th St. on the north, and Central Park West on the we...

lettuce

(Encyclopedia)lettuce, annual garden plant (Lactuca sativa and varieties) of the family Asteraceae (aster family), probably native to the East Indies or Asia Minor, possibly as a derivative of the widespread weed c...

Academy

(Encyclopedia)Academy, school founded by Plato near Athens c.387 b.c. It took its name from the garden (named for the hero Academus) in which it was located. Plato's followers met there for nine centuries until, al...

lupine

(Encyclopedia)lupine or lupin lo͞oˈpĭn [key], any species of the genus Lupinus, annual or perennial herbs or shrubs of the family Leguminosae (pulse family). These leguminous plants have been cultivated in the M...