Robert W. Freckmann Herbarium


  Ulmus thomasii Sarg. image
Photographer: Robert W. Freckmann           

Matthew L. Wagner

Matthew L. Wagner

Matthew L. Wagner
Family Ulmaceae
Ulmus thomasii Sarg.
rock elm
Ulmus: the classical Latin name for the elm
thomasii: after David Thomas 1776-1819, American pomologist, florist, and agricultural writer
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial tree to 98' tall with an oblong crown; gray bark with deep fissures of broad, flat ridges
Flower: brown, oval buds with a pointed tip; inflorescence usually 10 flowers in a long, hanging cluster; blooms in spring
Fruit:elliptic to oval samara with narrow wings and a shallow notch; seeds inflated but not thick
Leaf:obovate to oblong-oval, bases unequal, edges doubly toothed
Habitat: moist to dry; slopes, outcrops, woods, floodplains, streambanks in rocky, limy or rich soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Ulmus list Google- Images or Text

Flora of North America (off site)
Synonyms 
Ulmus racemosa D.Thomas 1831, non Borkh. 1800.

         
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