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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.

October 6, 1896: 121 years ago today!

10/5/2017

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Another fall blooming aster!  ​Collected on October 6, 1896 (same year Carnegie Museum was founded!), this specimen was found by early museum botanist John Shafer on Jack’s Island, a small island on the Allegheny River (between Harrison Twp and city of Lower Burrell).   Despite the name, New England aster can be found across eastern North America.  Along with many other species in the genus Aster, this species was recently reclassified in the Symphyotrichum genus.  Symphyotrichum novae-angliae is a perennial (lives for several years) with beautiful deep blue-purple flowers.  Like other plants in the sunflower family (Asteraceae), the “flowers” are actually a cluster of flowers (heads) composed of many flowers, with “ray” and/or “disk” flowers.  

Picture
Photo (above): View of Jack’s Island from Braeburn (Lower Burrell), PA.  New England aster might still be on the island, but note the dense stands of invasive giant knotweed that now lines the river and island.  Introduced to the US as a garden plant in 1894, Giant knotweed (Fallopia sachilinensis) was not yet in our area when this aster specimen was collect in 1896.  Given his thorough collections, we can be almost certain John Shafer would have collected it if it was.
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