P7 Trachycarpus wagnerianus (Dwarf Chusan palm)

Small leaved, semi-dwarf variant to Trachycarpus fortunei.
Native to: Japan, China, Taiwan, Chusan Island at high altitudes and is tolerant of cold.
Growth: Very slow
Fronds: Nearly circular
Petioles: Not spiny
Hardiness: Down to -20°C (-4°F). The hardiest.
Fruits: Dioecious (male and female plants) with dark purple-blue fruits.
Family: Arecaceae

Subfamily: Coryphoideae

Tribe: Trachycarpeae

In 1849 Robert Wagner smuggled plants from China to Kew Gardens.
Learn more about Trachycarpus wagnerianus (Trachycarpus fortunei 'Wagnerianus'):

Palmpedia
Wikipedia
San Marcos Growers
Etymology: Trachy = rough, carpus = seed. Wagnerianus = refers to Albert Wagner (German) who discovered it in 1873.