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Synonyms:
Altingia acalycina (L.) H.T.Chang


Mountain sweetgum is perhaps the hardiest member of the East Asia Clade, a group of fairly tender species that includes many of the taxa formerly treated under Altingia before the two were merged. While the former Altingia species have unlobed (or nearly unlobed) evergreen leaves, Mountain sweetgum looks more like a classic deciduous Liquidambar. It has become available in both the United States and Europe, and is cold-hardy to USDA Zone 7a and possibly into 6.


Additional Information

iNaturalist
Trees and Shrubs Online
Dave’s Garden
Royal Botanic Gardens Kew: Plants of the World Online
International Plant Names Index
Flora of China


References

Harms, H 1930. Hamamelidaceae, pp. 303-345. In A Engler, K Prantl, eds., Die Natürlichen Pflanzenfamilien, 2nd Ed. Vol. 18a. Engelmann, Leipzig, Germany.

Ickert-Bond SM, Pigg KB, Wen J (2005) Comparative infructescence morphology in Liquidambar (Altingiaceae) and its evolutionary significance. American Journal of Botany 92: 1234–1255. https://doi.org/10.3732/ajb.92.8.1234

Ickert-Bond SM, Wen J (2006) Phylogeny and biogeography of Altingiaceae: evidence from combined analysis of five non-coding chloroplast regions. Molecular Phylogenetics and Evolution 39: 512–528. https://doi.org/10.1016/j.ympev.2005.12.003

Ickert-Bond SM, Pigg KB, Wen J (2007) Comparative infructescence morphology in Altingia Noronha and discordance between morphological and molecular phylogenies. American Journal of Botany 94: 1094–1115. https://doi.org/10.3732/ajb.94.7.1094

Ickert-Bond SM, Wen J (2013) A taxonomic synopsis of Altingiaceae with nine new combinations. PhytoKeys 31: 21-61. https://doi.org/10.3897/phytokeys.31.6251