Beispiele
Bearbeiten
Familie: Betulaceae (Birkengewächse) {{POWO|Betulaceae}} Betulaceae. In: POWO = Plants of the World Online von Board of Trustees of the Royal Botanic Gardens, Kew: Kew Science |
{{POWO|Betula}} Betula. In: POWO = Plants of the World Online von Board of Trustees of the Royal Botanic Gardens, Kew: Kew Science |
Art: Betula nana (Zwerg-Birke) {{POWO|Betula nana}} Betula nana. In: POWO = Plants of the World Online von Board of Trustees of the Royal Botanic Gardens, Kew: Kew Science |