White Service-tree

The white service-tree ( Sorbus aria ) is a tree of the family of the Rosaceae originating in the south of the Europe.

Description

The white service-tree is a tree Hermaphrodite with right trunk and ovoid houppier being able to measure from 3 to 20 Mr.

Its bark is gray, its Feuille S alternate, irregularly toothed, tomenteuses white lower part

It carries in the middle of the spring of the Inflorescence S in Corymbe pollinated by entomogamy.

Its Fruit S is Drupe S disseminated by way endozoochore.

Habitat

The white service-tree appreciates the zones of rocks, rubbles, wood dry, the pubescent oak groves, hêtraies dry, forests collinéennes with tendency dry, pine plantations, fruticées, the forests acidiphiles submontagnardes and mountain, limiting of the forest

Subspecies and varieties

  • Sorbus aria (L.) Crantz subsp. aria of wood caducifoliés médioeuropéens, basophilic, oligotrophiles
  • Sorbus aria (L.) Crantz subsp. aria VAr. incised wood caducifoliés médioeuropéens, basophilic, mountain dwellers of the ravines
  • Sorbus aria (L.) Crantz subsp. cretica of wood caducifoliés médioeuropéens, basophilic, Western

Hybrid

The crossing of the white service-tree with the common Poirier gave rise to an intergeneric hybrid named ×Sorbopyrus auricularis .

Internal bond

References

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