Despite their name, Mexican petunias are actually not petunias. Although they resemble petunias with their cheery purple ...

Study warns of threat to native biodiversity from invasive Brazilian plant Ruellia elegans in northeastern India.

Journal of the Washington Academy of Sciences, Vol. 17, No. 20 (December 4, 1927), pp. 509-520 (12 pages) This item is openly available as part of an Open JSTOR ...