Rainbow of Plant Dyes

Aug 17 2020

Works of Art

People have been dyeing their clothing with plants since ancient times. All around…

By Sarah Dutton

Eight Days of Oil

Dec 16 2019

Specimen Stories

Oil has a special significance for those who celebrate Hanukkah. This Jewish…

By Sarah Dutton

John Torrey’s Trip to California and Colorado, 1872

Jun 28 2019


In July of 1872, John Torrey and his daughter Margaret departed on…

By Sarah Dutton

Astragalus osterhoutii, Osterhout milkvetch

May 10 2019

Specimen Stories

Astragalus osterhoutii M. E. Jones (or Osterhout milkvetch) is an herbaceous plant known…

By Sarah Dutton