Field Horsetail
Equisetum arvenseEquisetaceae — Horsetail family
Native

Fertile stems emerging. The gold is moss!
White Clay Creek State Park -- Pump House RoadMarch 2019

Sterile stems are later.
Burrows RunMay 2007

White Clay Creek State Park -- Pump House Road
April 2015

White Clay Creek State Park -- Thompson Station Road
May 2007
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Photos copyright David G. Smith
Information from the Delaware Flora Checklist used with author's permission.