Merveille de Bollwiller
ActiveCorylus avellana L. · Common hazel
WEISSMANN (FR)
Corylus avellana L. Common hazel · Fruit crops
also searched as: тонда гентиле романа
10 August 2026
The plant is of medium vigor with a semi-erect, widely branched crown. The nuts have a spheroidal shape with a slight point at the apex; fruit size varies from medium to large (13–22 mm). The shell is of medium thickness, nut-colored with visible stripes.
The variety belongs to the mid-season maturity group; the harvesting period falls in August–November. It is distinguished by high and stable productivity, as well as resistance to major pests and diseases. The kernel has a crunchy texture and an intense aroma.
The variety is an ancient product of folk selection from the Lazio region (Italy). In commercial horticulture, it is used as a primary variety for production or as a pollinator for other cultivars.
3 jurisdictions
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.
Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
breeder code TONDA GENTILE ROMANA
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ COA015
№ 005556
№ 1363161
№ 19543011
№ 2025543002
№ 2025543008
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
Piemonte ASPROCOR S.C.C.A.P.A.
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Corylus avellana L. · Common hazel
Piemonte ASPROCOR S.C.C.A.P.A.
Nearby in the species list TONDA DI CASERTA, Tonda di Giffoni, TONDA ETRUSCA, Tonda Francescana, Tonda genitle trilobata, Tonda gentile, Tonda gentile delle Langhe, TONDA GENTILE DI VITERBO, Tonda gentile piemontese, Tonda gentile piemontese, Pijemontski, Tonda gentile delle Langhe, Tonda genitle trilobata, Tonda Gentile Trilobata, TONDA GENTILLE ROMANA, Tonda Pacifica, Tonda Romana, TONDA ROSSA, TONDA STRIATA, TONDA TEMPESTIVA NAPOLETANA, Tondo, Torino 112, TORINO_H.199