Et ceterach…

Rubus caesius L., 1753

Common names

  • 🇬🇧 Dewberry
  • 🇫🇷 Ronce bleue, Ronce bleu-vert, Ronce à fruits bleus, Ronce glauque

Taxonomy

  • Kingdom: Plantae
  • Clade: Tracheophytes
  • Clade: Angiosperms
  • Clade: Eudicots
  • Clade: Superrosids
  • Clade: Rosids
  • Clade: Fabids
  • Order: Rosales
  • Family: Rosaceae
  • Subfamily: Rosoideae
  • Tribe: Rubeae
  • Genus: Rubus
  • Species: Rubus caesius

Presence

Present.

Conservation status

  • Red List (Metropolitan France): LC Least Concern
  • Red List (Europe): LC Least Concern

Notes

Possible confusion with many species of the genus Rubus. The round and glabrous stems with short thorns (≤ 3 mm) and the leaves with always 3 leaflets, the terminal being petiolate, allow for the identification of R. caesius.

The fruits are composed of 10-20 - sometimes fewer - blue-black and pruinose drupelets.

Hybridizes with:

  • R. idaeus L., 1753 to produce R. × idaeoides Ruthe, 1834, P;
  • R. ulmifolius Schott, 1818 to produce R. × uncinellus P.J.Müll. & Lefèvre, 1859, P.

Photographs

img/rubus-caesius.webp
Rubus caesius
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Rubus caesius
img/rubus-caesius-3.webp
Rubus caesius
img/rubus-caesius-4.webp
Rubus caesius - Leaves
img/rubus-caesius-5.webp
Rubus caesius - Immature fruits
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Rubus caesius - Stem

Sources