|Subgenus:||Alnus subg. Alnus|
Alnus jorullensis, commonly known as Mexican alder, is an evergreen or semi-evergreen alder, native to eastern and southern Mexico, Guatemala and Honduras. Although previously reported from the Andes, further collections showed these to be the similar species Alnus acuminata, commonly found in South America.
Alnus jorullensis is a medium-sized tree growing to 20–25 m tall. The leaves are obovate to elliptic, 5–12 cm long, somewhat leathery in texture with a serrated margin and glandular on the underside. The flowers are wind-pollinated catkins, produced in early spring.
It is used for ornamental planting in warm temperate areas such as southern California.
- Alnus jorullensis subsp. jorullensis - Mexico, Guatemala, Honduras
- Alnus jorullensis subsp. lutea Furlow - Mexico
- Kew World Checklist of Selected Plant Families
- Furlow, John (April 1979). "The Systematics of the American Species of Alnus (Betulaceae)". Rhodora. 81 (826): 151. Retrieved 18 December 2015.
- Macbride, J.F. (1937). "Betulaceae". Flora of Peru. 13 (2/2). Field Museum of Natural History. pp. 267–268.
- Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras