Summary ⁴

Euphorbia esula, commonly known as green spurge or leafy spurge, is a species of spurge native to central and southern Europe (north to England, the Netherlands, and Germany), and eastward through most of Asia north of the Himalaya to Korea and eastern Siberia.

How to recognize it? ⁵

Brown roots have pink buds. Small, yellow heart-shaped floral leaves. Greenish yellow flower clusters. Exudes milky white sap. Grow to 1m (3.3 ft).

Observations in Banff National Park ⁶

When are they blooming in Banff National Park? Mid-June at the earliest. Full bloom usually in July and early August. Bloom/seeding continuing on until end of September.

Sources and Credits

1. (c) Matt Lavin, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Euphorbia_esula_(5143744911).jpg
2. (c) Ivar Leidus, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Euphorbia_esula_-_kibe_piimalill.jpg
3. (c) anonymous, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Euphorbia_esula10.jpg
4. Adapted by bioblitzbanff from a work by (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Euphorbia_esula
5. (c) bioblitzbanff, some rights reserved (CC BY-SA)
6. (c) metallyza, some rights reserved (CC BY-SA)

More Info

• iNaturalist.ca taxon page
• Atlas of Living Australia
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Flora Digital de Portugal
• Flora of North America
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• NatureServe Explorer 2.0
• NBN Atlas
• OregonFlora.org
• SEINet Symbiota portals
• Taxonomic notes on Euphorbia esula (Euphorbiaceae)
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online

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