Acer duplicatoserratum is a species of maple

Maple

Acer is a genus of trees or shrubs commonly known as maple.Maples are variously classified in a family of their own, the Aceraceae, or together with the Hippocastanaceae included in the family Sapindaceae. Modern classifications, including the Angiosperm Phylogeny Group system, favour inclusion in...

, native to southern China, including Taiwan

Taiwan

Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

.

It is a small tree, in the same group of maples as Acer palmatum

Acer palmatum

Acer palmatum, called Japanese Maple or Smooth Japanese Maple is a species of woody plant native to Japan, North Korea, South Korea, China, eastern Mongolia, and southeast Russia. Many different cultivars of this maple have been selected and they are grown worldwide for their attractive leaf...

. The leaves are palmately lobed

Lobe (anatomy)

In anatomy, a lobe is a clear anatomical division or extension that can be determined without the use of a microscope This is in contrast to a lobule, which is a clear division only visible histologically....

 with seven to nine lobes, 2.3–10 cm long and 3–10 cm broad.

There are two varieties

Variety (biology)

In botanical nomenclature, variety is a taxonomic rank below that of species: as such, it gets a three-part infraspecific name....

:

• Acer duplicatoserratum var. duplicatoserratum. Taiwan, endemic; listed as Vulnerable. Leaf petiole
  Petiole (botany)
  In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...
  
  s always pubescent.
• Acer duplicatoserratum var. chinense C.S.Chang. Mainland China, in Anhui
  Anhui
  Anhui is a province in the People's Republic of China. Located in eastern China across the basins of the Yangtze River and the Huai River, it borders Jiangsu to the east, Zhejiang to the southeast, Jiangxi to the south, Hubei to the southwest, Henan to the northwest, and Shandong for a tiny...
  
  , Fujian
  Fujian
  ' , formerly romanised as Fukien or Huguing or Foukien, is a province on the southeast coast of mainland China. Fujian is bordered by Zhejiang to the north, Jiangxi to the west, and Guangdong to the south. Taiwan lies to the east, across the Taiwan Strait...
  
  , Guizhou
  Guizhou
  ' is a province of the People's Republic of China located in the southwestern part of the country. Its provincial capital city is Guiyang.- History :...
  
  , southern Henan
  Henan
  Henan , is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is "豫" , named after Yuzhou , a Han Dynasty state that included parts of Henan...
  
  , Hubei
  Hubei
  ' Hupeh) is a province in Central China. The name of the province means "north of the lake", referring to its position north of Lake Dongting...
  
  , Hunan
  Hunan
  ' is a province of South-Central China, located to the south of the middle reaches of the Yangtze River and south of Lake Dongting...
  
  , Jiangsu
  Jiangsu
  ' is a province of the People's Republic of China, located along the east coast of the country. The name comes from jiang, short for the city of Jiangning , and su, for the city of Suzhou. The abbreviation for this province is "苏" , the second character of its name...
  
  , Jiangxi
  Jiangxi
  ' is a southern province in the People's Republic of China. Spanning from the banks of the Yangtze River in the north into hillier areas in the south, it shares a border with Anhui to the north, Zhejiang to the northeast, Fujian to the east, Guangdong to the south, Hunan to the west, and Hubei to...
  
  , Shandong
  Shandong
  ' is a Province located on the eastern coast of the People's Republic of China. Shandong has played a major role in Chinese history from the beginning of Chinese civilization along the lower reaches of the Yellow River and served as a pivotal cultural and religious site for Taoism, Chinese...
  
  , and Zhejiang
  Zhejiang
  Zhejiang is an eastern coastal province of the People's Republic of China. The word Zhejiang was the old name of the Qiantang River, which passes through Hangzhou, the provincial capital...
  
  . Leaf petioles only pubescent when young, becoming hairless.

The taxonomic status of the species and its close relatives remains unresolved, and it is possible the species may be relegated to synonymy within Acer ceriferum in the future.