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cultivar
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Introduction References & Edit History Related Topics
Quizzes
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
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H1N1 influenza virus particles. Colorized transmission electron micrograph. Surface proteins on surface of the virus particles shown in black. Influenza flu
10 Ways of Looking at Cells
Gray wolf. Grey wolf. Timber wolf. Canis lupus. Canidae. Wolves. Two gray wolves running in forest near Golden, British Columbia, Canada.
Why Do Scientific Names Have Two Parts?
Endoplasmic reticulum. cell biology
6 Cell Organelles
Science studient dissecting frog
Pro and Con: Animal Dissection
Discover
Still from the film Deliverance, 1919. The story of Helen Keller and Anne Sullivan. View shows Keller in the cockpit/front seat of an airplane.
How Did Helen Keller Fly a Plane?
Black widow spider
9 of the World’s Deadliest Spiders
Solar eclipse of the sun.
The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses
Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
Why Do Some Cicadas Appear Only Every 17 Years?
Solar Eclipse, Eclipse, Solar Flare, Outer Space, Astronomy
What Causes Lunar and Solar Eclipses?
United States Electoral College votes by state
How Many Electoral College Votes Does Each U.S. State Have?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
taxonomy and horticulture
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Category: Science & Tech
Key People:
William James Farrer
Related Topics:
taxon
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cultivar, Any variety of a plant, originating through cloning or hybridization (see clone, hybrid), known only in cultivation. In asexually propagated plants, a cultivar is a clone considered valuable enough to have its own name; in sexually propagated plants, a cultivar is a pure line (for self-pollinated plants) or, for cross-pollinated plants, a population that is genetically distinguishable.

This article was most recently revised and updated by Robert Curley.