Accepted By:
-
Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
-
Correll, D. S. & M. C. Johnston. 1970. Man. Vasc. Pl. Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
-
Gleason, H. A. 1968. The Sympetalous Dicotyledoneae. vol. 3. 596 pp. In H. A. Gleason Ill. Fl. N.E. U.S.. New York Botanical Garden, New York.
-
Gleason, H. A. & A. J. Cronquist. 1991. Man. Vasc. Pl. N.E. U.S. (ed. 2) i–910. New York Botanical Garden, Bronx.
-
Krendl, F. X. 2014. Die Rubiaceae in Albanien: Zytologie, Ökologie un Verbreitung der bisher nachgewiesenen Taxa. Ann. Naturhist. Mus. Wien, B 116(115): 151.
-
Moss, E. H. 1983. Fl. Alberta (ed. 2) i–xii, 1–687. University of Toronto Press, Toronto.
|