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Collected on this day...

a weekly blog featuring specimens in the Carnegie Museum herbarium.
Each specimen has an important scientific and cultural story to tell.
This material is based upon work supported by the National Science Foundation grant no. DBI 1612079 (2017-2019) and DBI 1801022 (2019-2022). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

February 17, 1918: 99 years ago today

2/17/2017

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Collected on February 17, 1918 in Palm Beach, Florida. Helianthus debilis (also known as beach sunflower) is native to coastal United States.  Most Helianthus species are native to North America, and includes the well-known common sunflower (Helianthus annuus), which was domesticated in the southeastern US by Native Americans over 4,000 years ago.
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January 20, 1907: 110 years ago today

1/20/2017

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Collected on this day in 1907, this specimen was found in Monserrat by John A. Shafer, who became the first curator of the herbarium at the Carnegie Museum in 1897.  Known as ‘devil weed,’ Chromolaena odorata in the sunflower family (Asteraceae), is native to the Carribean, Mexico and subtropical United States, and has become a problematic invader in tropical regions of Asia, Africa, and the Pacific.

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