Dig deeper at SERNEC, a consortium of southeastern herbaria.
Monilophytes (ferns): Horsetails: Equisetales
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Gill Newberry gn1_e_arvense_field_2
Node sheaths slightly flaring, teeth 6-12, brown-tipped, per Field Guide to the Ferns and Other Pteridophytes of Georgia.
Gill Newberry gn1_e_arvense_field_ho
Sterile stems green, with slender branches in whorls at nodes, per Field Guide to the Ferns and Other Pteridophytes of Georgia.
Patrick D. McMillan pdmearvense_nantahala
Month Unknown NC
Nantahala National Forest
Sterile stems profusely branched in whorls at all but basal & apical few nodes, per Vascular Flora of the Carolinas.