Merveille de Bollwiller
ActiveCorylus avellana L. · Common hazel
WEISSMANN (FR)
10 August 2026
The Thinscald nut variety is recognized as a synonym for the Cosford variety, which is also known by the names Cosforder Zellernuss, Improved Cosford, and Miss Young’s. The variety is of British origin and was first officially described in 1829.
The plant is included in registries of nut cultivars. A characteristic feature of the nuts is a thin shell, which is reflected in the German synonym Weichschalige. The nuts ripen in September.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Corylus avellana L. · Common hazel
WEISSMANN (FR)
Corylus avellana L. · Common hazel
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Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
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Corylus avellana L. · Common hazel
Nearby in the species list Smolin, Sobieski, Sofiivskyi 1, Sofiivskyi 15, Sofiivskyi 2, Spansk Lambert, STOROZhYNETsKYI, Syrena, TAPPARONA, Theta, Tombul, TONDA BIANCA, TONDA CALABRESE, Tonda delle Langhe, Tonda di Biglini, TONDA DI CASERTA, Tonda di Giffoni, TONDA ETRUSCA, Tonda Francescana, Tonda genitle trilobata