European chestnut (Castanea sativa)

General Information

Family: Beech family (Fagaceae)
Flowering period in Central Europe: Early to late summer
Months: 6–8

Allergy potential
Low allergenicity. Main allergen Cas s1.

Due to the high similarity of the main allergen, frequent cross-reactions with birch pollen are common. Pollen allergen cross-reactive to chestnuts (chestnut allergy), also in connection with latex allergy.

Botanical Information

Natural distribution in temperate climates from North America, Southeast Europe through Asia Minor to Iran and East Asia. In warmer areas in Eastern Austria in gardens and orchards or as a park tree. Low to moderate altitudes.

Habit — Tree, rarely shrubby. Foliage — Deciduous, young leaves hairy, hairs fall off quickly, leaves elliptic to lanceolate, leaf apex pointed, leaf margin serrated to toothed. Reproduction — Monoecious, ♂ inflorescences (catkins), head-like partial inflorescences, ♀ flowers at the base of inflorescences (hermaphroditic inflorescence, only one sex is formed), dark brown nuts (chestnuts) surrounded by spiny cupule.