In 1753, in his book titled "Species Plantarum", Swedish botanist
Carl von Linné initiated a new system of naming plants, adopting Latin
as the system's official language. Latin was chosen since it was no longer
spoken and therefore not evolving and changing as languages tend to. The
book and other works by von Linne were penned under the (Latin) name Carolus
Linnaeus.
Prior to Linnaeus, plants were named somewhat at random. Names usually included
many if not all of the identifying features of the plant. For that reason,
the names were usually very long and unwieldy.
Today, both plants and animals (flora and fauna) use binomial nomenclature (meaning
two names) for "official" identification. The larger classification
hierarchy reads like this:
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Division |
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Class |
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Order |
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Family |
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Genus |
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Species |
Genus and species are the two main identifiers. Any further names (variety, cultivar
or hybrid) follow the two main designations. The names tell us the:
- Genus — A group that shares at least one common characteristic. That
characteristic is commonly the makeup of the reproductive organ —
the flower. The genus name is always capitalized and it is usually a noun.
- Species — This further links genetic characteristics — a key here is the
potential to cross-pollinate. The species name is always in lowercase
and is usually an adjective. A subspecies is a regional variant
of a species and is denoted by the letters subsp. or ssp.
Often other names are attached:
- Variety and form — notes other characteristics occurring naturally.
Varieties almost always reproduce true from seed. (Artificially pollinated
plants most likely wil not).
- Cultivar — a characteristic created artificially; the cultivar name is
capitalized and enclosed by single quotes.
- Hybrid — a new plant created by crossing two species, indicated by a lower case letter x between the two species names.
Example:
Juniperus (genus) horizontalis (species) 'Bar Harbor' (cultivar)