Siri Sylvia Patricia von Reis (February 10, 1931 – August 3, 2021)[1][2] was an American botanist, author, and poet of half-Finnish and half-Swedish ancestry.

[4] She was also an investigator at the New York Botanical Garden.

Siri von Reis was the daughter of Bror Gustav von Reis (1903–1975), the president of Detroit Broach and Machine Company of Rochester, Michigan, and Donna Tavastila von Reis (1908–1994).

[6] She received a bachelor's degree in botany from the University of Michigan in 1953.

[6] After breaking off an engagement to the electronics executive Arthur G. B. Metcalf in 1959,[6] she married the Jewish American banker Arthur Goodhart Altschul, a Goldman Sachs Group partner and member of the Lehman banking family.