Astrebla squarrosa C.E.Hubbard F. Ballard, „Astrebla squarrosa C.E.Hubbard“, Hookers Icones Plantarum, Bd. 32 (3142), S. 1-2, 1933. Read more about Astrebla squarrosa C.E.HubbardGoogle ScholarBibTeXRTFMARCEndNote XMLRIS