Ulmaceae
Rock elm
Ulmus thomasii
- Family
- Ulmaceae
- Genus
- Ulmus
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Common names
By language (8)
- Arabic
- دردار توماسي
- arz
- دردار توماسى
- English
- Rock elm, Cork elm
- German
- Felsen-Ulme, Felsenulme
- Persian
- اولموس توماسی
- Russian
- Вяз Томаса
- Turkish
- Mantar karaağacı
- Ukrainian
- В'яз скельний
Synonyms
- Ulmus racemosa D.Thomas
Flowers
- Flower colour
- yellow (USDA PLANTS Database)
Characteristics
- Growth habit
- Tree
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: Ronnie Nijboer, CC0, from Wikimedia Commons 
Photo: Ronnie Nijboer, CC0, from Wikimedia Commons 
Photo: Ronnie Nijboer, CC0, from Wikimedia Commons 
Photo: Ronnie Nijboer, CC0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Douglas Goldman, CC BY-SA 4.0, from Wikimedia Commons
More in Ulmus
- Wych elmUlmus glabraUlmaceae
- Small-leaved elmUlmus minorUlmaceae
- European white elmUlmus laevisUlmaceae
- American elmUlmus americanaUlmaceae
- Siberian elmUlmus pumilaUlmaceae
- Chinese elmUlmus parvifoliaUlmaceae
- Slippery elmUlmus rubraUlmaceae
- Dutch elmUlmus × hollandicaUlmaceae
- Ulmus laciniataUlmaceae
- Japanese elmUlmus davidianaUlmaceae
- Ulmus mexicanaUlmaceae
- Ulmus castaneifoliaUlmaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.