Thursday, 20 September 2012

ROSE

LOVER FIRST GIFT


Species

The genus Rosa is subdivided into four subgenera:
  • Hulthemia (formerly Simplicifoliae, meaning "with single leaves") containing one or two species from southwest AsiaR. persica and Rosa berberifolia which are the only roses without compound leaves orstipules.
  • Hesperrhodos (from the Greek for "western rose") contains Rosa minutifolia and Rosa stellata, from North America.
  • Platyrhodon (from the Greek for "flaky rose", referring to flaky bark) with one species from east Asia, Rosa roxburghii.
  • Rosa (the type subgenus) containing all the other roses. This subgenus is subdivided into 11 sections.
    • Banksianae - white and yellow flowered roses from China.
    • Bracteatae - three species, two from China and one from India.
    • Caninae - pink and white flowered species from AsiaEurope and North Africa.
    • Carolinae - white, pink, and bright pink flowered species all from North America.
    • Chinensis - white, pink, yellow, red and mixed-color roses from China and Burma.
    • Gallicanae - pink to crimson and striped flowered roses from western Asia and Europe.
    • Gymnocarpae - one species in western North America (Rosa gymnocarpa), others in east Asia.
    • Laevigatae - a single white flowered species from China
    • Pimpinellifoliae - white, pink, bright yellow, mauve and striped roses from Asia and Europe.
    • Rosa (syn. sect. Cinnamomeae) - white, pink, lilac, mulberry and red roses from everywhere but North Africa.
    • Synstylae - white, pink, and crimson flowered roses from all areas.

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