In wild plants manganese concentrations of up to 23 grams per kilogram (0.37 oz/lb) of dried leaf have been analyzed.

[3] After the Fukushima Daiichi nuclear disaster in March 2011 it was found that Chengiopanax sciadophylloides accumulated the radioactive isotope Caesium-137 to concentrations above the human consumption guideline of 100 becquerels per kilogram of fresh weight even as far away as Nagano and Iwate Prefectures.

Analysis of leaves taken from Chengiopanax sciadophylloides in August and October 2013 from a forest 37 kilometres (23 mi) northwest of the Fukushima Dai-ichi Nuclear Power Plant found a mean concentration of 28,100 becquerels per kilogram of dry weight, over three times those of other trees.

[4] Known as koshiabura (コシアブラ[5]), gonzetsu and gonzetsunoki[6] in Japanese cuisine, it is foraged in the wild in spring for the young leaves as sansai ("mountain vegetables").

[8] The polyacetylenes in the plant sap were polymerised by sunlight to produce the hard resin varnish.