Sorbus rupicola, known as rock whitebeam, is a rare shrub or small tree best known from the British Isles but also reported from Norway, Sweden and Russia. Reaching heights of 10 m, it grows in rocky woodland, scrub and cliffs, usually on limestone. The species reproduces apomictically (asexually via cloned seeds) and was presumably created by autopolyploidysation of the common whitebeam proper (Sorbus aria s.str.). It contains a tetraploidal set of chromosomes (2n=4x=68). A young specimen
* Back of a leaf
* Upper surface of a leaf
* Upper surface of a leaf
* Twig and part of a leaf
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| - غبيراء صخرية (ar)
- Felsen-Mehlbeere (de)
- Sorbus rupicola (en)
- Klippoxel (sv)
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| - الغبيراء الصخرية (باللاتينية: Sorbus rupicola) نوع نباتي شجري يتبع جنس الغبيراء من الفصيلة الوردية.تنتشر في الجزر البريطانية والنرويج والسويد وروسيا. تعيش في الأراضي القلوية في المناطق الصخرية. (ar)
- Klippoxel (Sorbus rupicola) är en rosväxtart som först beskrevs av John Thomas Irvine Boswell Syme, och fick sitt nu gällande namn av Johan Teodor Hedlund. Klippoxel ingår i släktet oxlar, och familjen rosväxter. Inga underarter finns listade i Catalogue of Life. (sv)
- Die Felsen-Mehlbeere (Sorbus rupicola) ist eine seltene Art der Sorbus aria-Gruppe. Sie ist auf den britischen Inseln (Irland, Schottland, England) sowie im südskandinavischen Raum (Süd- und Mittel-Norwegen, Schweden) verbreitet, kommt aber meist nur lokal in kleinen Beständen vor. Vorzugsweise tritt sie auf basenreichem Substrat an Waldrändern und Gebüschen auf. (de)
- Sorbus rupicola, known as rock whitebeam, is a rare shrub or small tree best known from the British Isles but also reported from Norway, Sweden and Russia. Reaching heights of 10 m, it grows in rocky woodland, scrub and cliffs, usually on limestone. The species reproduces apomictically (asexually via cloned seeds) and was presumably created by autopolyploidysation of the common whitebeam proper (Sorbus aria s.str.). It contains a tetraploidal set of chromosomes (2n=4x=68). A young specimen
* Back of a leaf
* Upper surface of a leaf
* Upper surface of a leaf
* Twig and part of a leaf (en)
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| - Rock whitebeam at the Trondheimsfjord, Norway (en)
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| - الغبيراء الصخرية (باللاتينية: Sorbus rupicola) نوع نباتي شجري يتبع جنس الغبيراء من الفصيلة الوردية.تنتشر في الجزر البريطانية والنرويج والسويد وروسيا. تعيش في الأراضي القلوية في المناطق الصخرية. (ar)
- Die Felsen-Mehlbeere (Sorbus rupicola) ist eine seltene Art der Sorbus aria-Gruppe. Sie ist auf den britischen Inseln (Irland, Schottland, England) sowie im südskandinavischen Raum (Süd- und Mittel-Norwegen, Schweden) verbreitet, kommt aber meist nur lokal in kleinen Beständen vor. Vorzugsweise tritt sie auf basenreichem Substrat an Waldrändern und Gebüschen auf. Die Bäume der Felsen-Mehlbeere erreichen meist Höhen von drei bis fünf Meter. Die Art vermehrt sich apomiktisch (Apomixis) und ist vermutlich durch Autopolyploidisierung der Mehlbeere im eigentlichen Sinne (Sorbus aria s.str.) entstanden. Sie weist einen tetraploiden Chromosomensatz auf (2n=4x=68). (de)
- Sorbus rupicola, known as rock whitebeam, is a rare shrub or small tree best known from the British Isles but also reported from Norway, Sweden and Russia. Reaching heights of 10 m, it grows in rocky woodland, scrub and cliffs, usually on limestone. The species reproduces apomictically (asexually via cloned seeds) and was presumably created by autopolyploidysation of the common whitebeam proper (Sorbus aria s.str.). It contains a tetraploidal set of chromosomes (2n=4x=68). Sorbus rupicola is a member of Sorbus aria agg., which contains 20 subspecies. A key to this aggregate is given in Stace - though be warned Stace states "It is probably impossible to construct a reliable key to the agg."! Stace gives Sorbus rupicola the following characteristics:
* Leaves unlobed or lobed ≤1/20 of the way to the midrib.
* Leaves with a single style of teeth or, weakly, two styles of teeth.
* Leaves with 6 to 9 (rarely 4 to 10) pairs of lateral veins.
* Leaves mostly 1.6 to 2.4 times longer than wide.
* Leaves mostly widest in that half of the leaf furthest from the stalk.
* Leaves usually obtuse (rarely acute) at apex.
* Leaves have dense white hairs on lower surface.
* Fruits 10-15mm across, warty.
* A young specimen
* Back of a leaf
* Upper surface of a leaf
* Upper surface of a leaf
* Twig and part of a leaf (en)
- Klippoxel (Sorbus rupicola) är en rosväxtart som först beskrevs av John Thomas Irvine Boswell Syme, och fick sitt nu gällande namn av Johan Teodor Hedlund. Klippoxel ingår i släktet oxlar, och familjen rosväxter. Inga underarter finns listade i Catalogue of Life. (sv)
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