Dig deeper at SERNEC, a consortium of southeastern herbaria.
You may also want to check Trees, Shrubs, and Woody Vines of North Carolina
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Rosales
Manual of the Southeastern Flora (Small, 1933)
American Elm, White Elm
Click or hover over the thumbnails to see larger pictures.
John B. Nelson jbn_4449973327_134f973b98
Samara elliptical, flattened, notched at the tip, densely ciliate, per Native Trees of the Southeast, An Identification Guide.
JK Marlow jkm140625_356
June Greenville County SC
Lvs >4.5" long, tip acuminate, base unequal, margin coarsely doubly serrate, per Native Trees of the Southeast, An Identification Guide.
JK Marlow jkm060701_005
July Spartanburg County SC
('Princeton' pictured) Bark light to medium gray, moderately fissured, per Native Trees of the Southeast, An Identification Guide.
JK Marlow jkm180924_4905
September McCormick County SC
Twigs brown, finely hairy or glabrous (vs. U. rubra gray oft w tiny grooves, per Woody Plants of the Southeastern US: A Winter Guide.
Richard and Teresa Ware rtw_u_americana_elm_twig
Buds mostly 4-5mm long; scales brown, distinctly dark-edged, per Woody Plants of the Southeastern US: A Winter Guide.