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An awn is a hairy or bristle-like growth on a plant. On the seeds of grasses such as barley or rye, they form foxtails which assist seed dispersal by being barbed and so sticking to passing animals. Also, the awns may twist or curl as they are wetted and dry out and this action can make fallen seeds walk until they fall into a crevice into ...
Prefix meaning "position away from". [1] abaxial Surface of an organ facing away from the organ's axis, e.g. the lower surface of a lateral organ such as a leaf or petal. [2] Contrast adaxial. abort To abandon development of a structure or organ. [3] abscission Natural shedding of an organ that is mature or aged, as of a ripe fruit or an old ...
Hordeum pusillum, also known as little barley, is an annual grass native to most of the United States and southwestern Canada. [ 1 ] [ 2 ] It arrived via multiple long-distance dispersals of a southern South American species of Hordeum about one million years ago. [ 3 ]
Many of these plants are listed in Stearn's Dictionary of Plant Names for Gardeners. William Stearn (1911–2001) was one of the pre-eminent British botanists of the 20th century: a Librarian of the Royal Horticultural Society , a president of the Linnean Society and the original drafter of the International Code of Nomenclature for Cultivated ...
The Old English word for barley was bere. [4] This survives in the north of Scotland as bere; it is used for a strain of six-row barley grown there. [5] Modern English barley derives from the Old English adjective bærlic, meaning "of barley". [3] [6] The word barn derives from Old English bere-aern meaning "barley-store". [3]
For the second portion of the list, see List of words having different meanings in American and British English: M–Z. Asterisked (*) meanings, though found chiefly in the specified region, also have some currency in the other region; other definitions may be recognised by the other as Briticisms or Americanisms respectively. Additional usage ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Hordeum species are used as food plants by the larvae of some Lepidoptera species, including the flame, rustic shoulder-knot and setaceous Hebrew character.. Some species have become weeds introduced worldwide by human activities, others have become endangered due to habitat loss.