It is the «dignity of living beings» passage, given the rest of the paragraph, that has been interpreted as being inclusive of plants. (slaw.ca)
They have reliably and effectively fought for dignity of human beings, for integrity of nature and the harmonious and collaborative work of humans and nature: with strong words and with impressive examples! (ifoam.bio)
It really is annoying when saying something perfectly fine and in the interests of the empowerment and dignity of women for that to be undermined in such a way. (nakedpastor.com)