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Kornberg, Roger David
(Encyclopedia)Kornberg, Roger David, 1947–, American biochemist, b. St. Louis, Mo., Ph.D. Stanford, 1972; son of Arthur Kornberg. Kornberg held academic posts at Cambridge (1972–76) and Harvard (1976–78) befo...Sigillaria
(Encyclopedia)Sigillaria sĭjĭlârˈēə [key], genus of fossil club moss allied to Lepidodendron, abundant in the Carboniferous period. The thick trunk was rarely branched and was covered for several feet from th...parsley
(Encyclopedia)parsley, Mediterranean aromatic herb (Petroselinum crispum or Apium petroselinum) of the carrot family, cultivated since the days of the Romans for its foliage, used in cookery as a seasoning and garn...thallophyte
(Encyclopedia)thallophyte, common name for members of the Thallophyta (or Thallobionta), a taxonomic group in some archaic classification systems that comprised algae, fungi, and lichens. The thallophytes were cons...breadroot
(Encyclopedia)breadroot or Indian breadroot, perennial plant (Psoralea esculenta) of the family Leguminosae (pulse family), indigenous to the American prairies and valued by Native Americans for the starchy tuberou...arrowhead
(Encyclopedia) CE5 Broad-leaved arrowhead, Sagittaria latifolia arrowhead, any plant of the genus Sagittaria, widely distributed marsh or aquatic herbs of the primitive family Alismataceae (water-plantain family...chervil
(Encyclopedia)chervil chûrˈvəl [key], name for two similar edible Old World herbs of the family Umbelliferae (parsley family). The salad chervil is Anthriscus cerefolium. Its leaves, like those of the related di...dwarf tree
(Encyclopedia)dwarf tree, in horticultural practice, a tree artificially kept to a smaller size than is normal for average members of the species. This is usually accomplished either by limiting its root space and ...Queen Anne's lace
(Encyclopedia)Queen Anne's lace or wild carrot, herb (Daucus carota) of the family Umbelliferae (carrot family), native to the Old World but naturalized and often weedy throughout North America. Similar in appearan...radish
(Encyclopedia)radish, herbaceous plant (Raphanus sativus) belonging to the family Cruciferae (or Brassicaceae; mustard family), with an edible, pungent root sliced in salads or used as a relish. It is thought to be...Browse by Subject
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