Skip to main content
Select Source:

Rosa

Rosa (roses; family Rosaceae) A genus of prickly, often scrambling shrubs that normally have pinnate leaves with stipules. The flowers have usually 5 sepals and petals, and numerous free stamens and free carpels, but the carpels sit in a deep cup formed by the calyx tube which becomes fleshy in the fruit, forming the rose hip, a valuable source of vitamin C. It is probably the most widely cultivated ornamental flowering plant. Many species and complex hybrid forms are cultivated for their showy, often fragrant flowers, which range in colour from white, yellow, and red, to a lilac-blue. The separation of the 7 chromosome sets in the formation of gametes is uniquely complex and may be a factor in producing their taxonomic diversity. There are about 100 species, found in the northern temperate zone, with subtropical outliers, but the genus contains many critical taxa (see TAXON) whose specific status is uncertain.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Rosa." A Dictionary of Plant Sciences. . Encyclopedia.com. 19 Feb. 2018 <http://www.encyclopedia.com>.

"Rosa." A Dictionary of Plant Sciences. . Encyclopedia.com. (February 19, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/rosa

"Rosa." A Dictionary of Plant Sciences. . Retrieved February 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/rosa

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.

roses

roses used to refer to favourable circumstances or ease of success.
roses, roses, all the way very successful or pleasant; quoting the first line of Robert Browning's Patriot (1855), describing the literal throwing of roses at a popular hero as he passed through the streets.

See also a bed of roses, rose.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"roses." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. 19 Feb. 2018 <http://www.encyclopedia.com>.

"roses." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. (February 19, 2018). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/roses

"roses." The Oxford Dictionary of Phrase and Fable. . Retrieved February 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/roses

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.