Acer leucoderme

Acer saccharum ssp. leucoderme - UWBG Washington Park Arboretum, Seattle, accession 1944, October 2005. Native to the USA: North Carolina south to Florida and west to Oklahoma and Texas.
"It differs from its allies mainly by the peculiar velvety down on the undersides of the leaf. Often the leaves are markedly wavy, which is almost never the case in subspecies saccharum."
Van Gelderen, et al., 1994. Maples of the World.

 

Acer saccharum ssp. leucoderme - UWBG Arboretum, accession 1944, April-May, 2006.

 

USDA: Acer leucoderme
http://plants.usda.gov/java/profile?symbol=ACLE

 

I have been following the last reported accepted taxonomic divisions as noted in De Jong, Piet C., Worldwide Maple Diversity, Proceedings of the International Maple Symposium 2002: 2-11. Section Acer Series Saccharodendron has one species – saccharum, which has seven subspecies. According to Van Gelderen, de Jong, and Oterdoom, Maples of the World (Timber Press 1994), this taxon is Acer saccharum ssp. leucoderme (Small) Demarais (1952). Two other USDA sources - Integrated Taxonomic Information System and Germplasm Resources Network - list the taxon as Acer saccharum Marshall ssp. leucoderme (Small) Desmarais.

 

Here is a photo of "chalk maple" taken 08-24-07 at San Antonio Botanical Garden in Texas

 

New planted Acer saccharum ssp. Leucoderme @ the Arnold. The fall color is amazing. It quickly caught my eye from a distance off trail.

 

4 years old from seed

 

Back to Acer leucoderme in the current maple list; I'll update the thread title :-)