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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.

November 9, 1915: 103 years ago

11/9/2018

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Perhaps not the most beautiful specimen in the collection, but check out the prickly stem! Former Carnegie Museum curator Otto Jennings described this species as “an obnoxious weed of farmlands and waste places” (1953).  This leafless specimen of Carolina nightshade (Solanum carolinense) was collected on November 9, 1915 in “Pittsburgh district” by Frank R. Alker. Carolina nightshade (also called horse nettle, wild tomato, and many other names) is in the potato/tomoato family (Solanaceae).  It is commonly found in disturbed and anthropogenic (human-made) environments, such as those in cities. 
 
Horse nettle is native to the Southeastern US, and now widely distributed as a naturalized species across the world. Although native to parts of the US (probably including PA), it is considered a noxious weed in some states.
 
This specimen is available virtually online at http://midatlanticherbaria.org/portal/collections/individual/index.php?occid=12257516&clid=0
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