I first took note of this this bamboo in Hua'an, China, near the central east coast. It was collected and sent to USDA quarantine in mid-2012. The culms are very erect and smoky gray, similar to the temperate bamboo, P.nigra Henon.
Currently being test-grown in the fields at Tropical Bamboo Nursery. Will be available for sale by the summer of 2018. Click to find your zone.