: מיכאל אבן-ארי, even-ari meaning lion's stone; born as Walter Schwarz 9 October 1904 in Metz – 15 April 1989 in Jerusalem)[1] was an Israeli botanist originally from Germany.

[2] He studied botany at Darmstadt University of Technology and received his doctorate 1927 under the auspices of Martin Möbius.

The mechanism explained a variety of ancient agricultural features, terraced wadis, channels for collecting runoff rainwater, and the phenomenon of "Tuleilat el-Anab", grape mounds.

[6][dubious – discuss] He worked as well on algae fuel, a special sort of renewable resource and biofuel.

[7] In 1966, Evenari was appointed member of the Leopoldina, the German national academy of sciences, and in 1977 his alma mater, the Darmstadt University of Technology, provided him with an honorary doctorate.