Christine Korsgaard argues for the moral status of animals and our obligations to them. She grounds this obligation on the notion that we share a common identity, our animal nature, with them and that animal pain represents a public reason that binds us; nevertheless, her distinctive attempt to enlist Kantian arguments to account for our obligations to animals has a startling implication that she fails to adequately consider: that we have direct duties to plants as well.
Bock, Gregory L.
"Korsgaard and Non-Sentient Life,"
Between the Species:
1, Article 4.
Available at: http://digitalcommons.calpoly.edu/bts/vol17/iss1/4