Deciding between a friend and foe can become challenging. In plants, this dilemma takes a worse dimension because both the friend and foe are the same sometimes.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/night-blooms
[2] http://admin.indiaenvironmentportal.org.in/category/author/tiasa-adhya
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tobacco
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/germany
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/flora
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology