Cneoridium dumosum (Nuttall) Hooker F. Collected March 26, 1960, at an Elevation of about 1450 Meters on Cerro Quemazón, 15 Miles South of Bahía de Los Angeles, Baja California, México, Apparently for a Southeastward Range Extension of Some 140 Miles
This paper is not the shortest paper ever published. A 2003 paper written by John H. Conway and Alexander Soifer has the title "Can n2+ 1 unit equilateral triangles cover an equilateral triangle of side > n, say n + ε?". The paper only has two words: "n2+2 can", and two figures. An even shorter paper is titled "Chemiefreie Haushaltsprodukte" (which is German for "Chemical-free household products). It has zero words after the abstract.