Betula × utahensis
Credits
Article from New Trees by John Grimshaw & Ross Bayton
Recommended citation
'Betula × utahensis' from the website Trees and Shrubs Online (treesandshrubsonline.
Genus
Other taxa in genus
- Betula albosinensis
- Betula alleghaniensis
- Betula × aurata
- Betula bomiensis
- Betula × caerulea
- Betula chichibuensis
- Betula chinensis
- Betula coerulea-grandis
- Betula cordifolia
- Betula corylifolia
- Betula cylindrostachya
- Betula davurica
- Betula delavayi
- Betula ermanii
- Betula forrestii
- Betula glandulosa
- Betula globispica
- Betula grossa
- Betula humilis
- Betula insignis
- Betula jacquemontii
- Betula lenta
- Betula luminifera
- Betula lutea
- Betula mandshurica
- Betula maximowicziana
- Betula medwediewii
- Betula nana
- Betula neoalaskana
- Betula nigra
- Betula occidentalis
- Betula papyrifera
- Betula pendula
- Betula platyphylla
- Betula populifolia
- Betula potaninii
- Betula pubescens
- Betula pumila
- Betula raddeana
- Betula schmidtii
- Betula szechuanica
- Betula tianschanica
- Betula utilis
This taxon is a natural hybrid of B. occidentalis and B. papyrifera. Its morphology is intermediate between the parent taxa. The branchlets are greenish brown and very resinous, and the ovate leaves are glabrous with blunt serrations. The pistillate catkins are very thick and slightly pubescent. Britton 1904, Furlow 1997. Distribution CANADA: Alberta, British Columbia, Yukon Territory; USA: Utah. Habitat Montane streambanks and lakeshores. USDA Hardiness Zone 1–2. Conservation status Not evaluated.
This is another variable hybrid with no advantages over its parents. It is grown in major collections, including a large specimen at Edinburgh and propagations from this at Wakehurst Place. It has also been introduced as seeds from Montana by Kenneth Ashburner, although the identity of these trees is somewhat in doubt, as in the wild they were very large, which seems improbable for a hybrid involving B. occidentalis (H. McAllister, pers. comm. 2007). Trees in cultivation at Stone Lane Gardens have striking black bark.