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Betulaceae, the birch family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams, hazel-hornbeam, and hop
The older Cronquist system only included four families (Betulaceae, Corylaceae, Fagaceae, Ticodendraceae; Corylaceae now being included within Betulaceae); this arrangement is followed by, for example, the World Checklist of selected plant families. [2]
A birch is a thin-leaved deciduous hardwood tree of the genus Betula (/ ˈ b ɛ tj ʊ l ə /), [2] in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae. The genus Betula contains 30 to 60 known taxa of which 11 are on the IUCN 2011 Red List of Threatened Species.
Betulaceae (birch family) Betula papyrifera: paper birch; canoe birch; American white birch Betulaceae (birch family) Betula pendula: silver birch Betulaceae (birch family) Betula platyphylla: Siberian silver birch Betulaceae (birch family) Betula populifolia: gray birch Betulaceae (birch family) Betula pubescens: downy birch Betulaceae (birch ...
"Phylogenetic Relationships of Diploid Species of Betula (Betulaceae) Inferred from DNA Sequences of Nuclear Nitrate Reductase". Systematic Botany. 32 (2): ...
Female alder catkins after shedding their seeds Alnus serrulata male catkins. Alders are trees of the genus Alnus in the birch family Betulaceae.The genus includes about 35 species [2] of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes.
The Royal Family Tree - each member of the Royal family's face in a circle with name and birth year Queen Elizabeth II Elizabeth was the first-born child of her father, King George VI, who was the ...
Betula nigra is a tree that classified in the family Betulaceae, which is commonly known as the Birch or Alder Family.This family comprises six genera (Alnus, Betula, Carpinus, Corylus, Ostrya, and Ostryopsis) and includes alders, birches, hornbeams, and hazelnuts.