Pinus parviflora 'Ara kawa' / Arakawa Japanese white pine

Pinus parviflora 'Ara kawa' is a small, upright, tree form of Japanese white pine with conspicuously rough bark, irregular branching and blue-green, fluffy needles that grow with a slight twist. After 10 years of growth, a mature specimen will measure 4.5 feet (1.5 m) tall and 28 inches (70 cm) wide, an annual growth rate of 4 to 6 inches (10 - 20 cm).

This cultivar is a long-time favorite for Bonsai enthusiasts world-wide. It's first known mention in botanical literature was made in mid 1970s by Bill Valvanis' International Bonsai magazine. This conifer originated in Japan long ago.
Pinus parviflora 'Ara kawa' — accessioned in 2008 by the Morris Arboretum in Philadelphia, Pennsylvania; photo from 2020.
Photo by Katherine Wagner-Reiss
Pinus parviflora 'Ara kawa' — a closeup of foliage detail. Photo copyrighted by The Wildlife & Conifer Garden; donated by Don and Nonda Surrat, Ohio, USA.
Photo by Nonda Surrat