Eight new (1a/1b, 2a, 3a, 4a/4b, and 5a/5b) and seven known (2b, 3b, and 6–10) asarone-derived phenylpropanoids, a known asarone-derived lignan (12), and four known lignan analogues (11 and 13–15) ...

At several points during the growing season the plants must be pruned, as the rhizome will continue to produce bines. Once the bines reach the top of the trellis and begin producing side branches, the ...