Tums
Shohin
Heads up: there was a hearing last month discussing the possible addition of JBP to the Mass. Prohibited Plant list. This covers the "importation, sale, and trade" plus "purchase and distribution of these plants and related activities" and "includes all cultivars, varieties and hybrids of the species" (wording taken from the main page for the list). The reasoning, given in this document, is that JBP is rapidly spreading outside of cultivation, particularly in the coastal parts of the state such as Cape Cod and the island of Nantucket.
I can't say I find that shocking; the climates of eastern Asia and eastern North America are quite similar. Many plants from Asia (bittersweet, knotweed, tree of heaven, bush honeysuckle, multiflora rose...) have already been found to be invasive. But this listing definitely lands the closest to the bonsai community that I've seen. Honestly, if Japanese maple (Acer palmatum) weren't so popular, I could see it meeting a similar fate eventually since it's also naturalizing throughout the northeastern US.
I can't say I find that shocking; the climates of eastern Asia and eastern North America are quite similar. Many plants from Asia (bittersweet, knotweed, tree of heaven, bush honeysuckle, multiflora rose...) have already been found to be invasive. But this listing definitely lands the closest to the bonsai community that I've seen. Honestly, if Japanese maple (Acer palmatum) weren't so popular, I could see it meeting a similar fate eventually since it's also naturalizing throughout the northeastern US.