Euphorbia marginata

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Malpighiales

Familia: Euphorbiaceae
Subfamilia: Euphorbioideae
Tribus: Euphorbieae
Subtribus: Euphorbiinae
Genus: Euphorbia
Subgenus: E. subg. Chamaesyce
Sectio: E. sect. Alectoroctonum
Species: Euphorbia marginata
Name

Euphorbia marginata Pursh, 1814
Synonyms

Homotypic
Dichrophyllum marginatum (Pursh) Klotzsch & Garcke, Monatsber. Königl. Preuss. Akad. Wiss. Berlin 1859: 249 (1859).
Tithymalus marginatus (Pursh) Cockerell, Torreya 9: 119 (1909).
Lepadena marginata (Pursh) Nieuwl., Amer. Midl. Naturalist 2: 300 (1912).
Agaloma marginata (Pursh) Á.Löve & D.Löve, Bot. Not. 114: 40 (1961).
Heterotypic
Euphorbia variegata Sims, Bot. Mag. 42: t. 1747 (1815).
Euphorbia marginata Kunth in F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov. Gen. Sp. 2: 61 (1817), nom. illeg.
Tithymalus variegatus (Sims) Haw., Suppl. Pl. Succ.: 68 (1819).
Euphorbia bonplandii Sweet, Hort. Brit., ed. 2: 456 (1830).
Euphorbia leucoloma Raf., Herb. Raf. 1: 22 (1833).
Lepadena leucoloma (Raf.) Raf., Fl. Tellur. 4: 114 (1838).
Euphorbia bejariensis DC., Atti Riunione Sci. Ital. 2: 157 (1841).
Euphorbia torrida DC., Atti Riunione Sci. Ital. 2: 158 (1841).
Euphorbia marginata var. uloleuca Engelm. & A.Gray, Boston J. Nat. Hist. 5: 261 (1845).
Dichrophyllum variegatum (Sims) Klotzsch & Garcke, Monatsber. Königl. Preuss. Akad. Wiss. Berlin 1859: 249 (1859).
Tithymalus marginatus f. inornata Daniels, Fl. Boulder Colorado: 165 (1911).
Tithymalus marginatus var. tetramerus Cockerell in F.P.Daniels, Fl. Boulder Colorado: 165 (1911).

Homonyms

Euphorbia marginata Kunth, nom. illeg. = Euphorbia bonplandii Sweet

Distribution
Native distribution areas:

Continental: Northern America
Alabama; Arizona; Colorado; Florida; Georgia; Illinois; Kansas; Louisiana; Mexico Gulf; Mexico Northeast; Mexico Southeast; Mexico Southwest; Minnesota; Mississippi; Missouri; Montana; Nebraska; New Mexico; North Carolina; North Dakota; Oklahoma; South Carolina; South Dakota; Tennessee; Texas; Utah; Wyoming

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Pursh, F.T. 1813 "1814". Flora Americae Septentrionalis, or, A systematic arrangement and description of the plants of North America. Vol. 2. pp. 359–751, London: White, Cochrance, and co. BHL Reference page. : 2:607.

Links

Govaerts, R. et al. 2020. Euphorbia marginata in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Jul 03. Reference page.
International Plant Names Index. 2020. Euphorbia marginata. Published online. Accessed: Jul 03 2020. Reference page.
Govaerts, R. et al. 2020. Euphorbia marginata in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Jul 03. Reference page.
Tropicos.org 2020. Euphorbia marginata. Missouri Botanical Garden. Published online. Accessed: 03 Jul 2020.
USDA, ARS, Germplasm Resources Information Network. Euphorbia marginata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Snow-on-the-mountain
français: Euphorbe panachée
日本語: ハツユキソウ
перем коми: 설악초
polski: Wilczomlecz obrzeżony
svenska: Broktörel
Türkçe: Saat çiçeği
中文: 银边翠

Euphorbia marginata (commonly known as snow-on-the-mountain, smoke-on-the-prairie, variegated spurge, or whitemargined spurge) is a small annual in the spurge family.

It is native to parts of temperate North America, from Eastern Canada to the Southwestern United States.[2] It is naturalized throughout much of China.[3]

The type specimen was collected in Rosebud County, Montana from the area of the Yellowstone River by William Clark during the Lewis and Clark Expedition.[4][5]
Description
Euphorbia marginata

Snow-on-the-mountain has grey-green leaves along branches and smaller leaves (bracts or cyathophylls) in terminal whorls with edges trimmed with wide white bands, creating, together with the white flowers, the appearance that gives the plant its common names.

Snow-on-the-mountain has also been found to emit large quantities of sulfur gas, mainly in the form of dimethyl sulfide (DMS).[6]
References

NatureServe (2024). "Euphorbia marginata". Arlington, Virginia. Retrieved 10 April 2024.
NRCS. "Euphorbia marginata". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 2012-09-29.
Ma, Jin-shuang; Gilbert, Michael G. "Euphorbia marginata". Flora of China. Vol. 11 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
International Plant Names Index (2008), The International Plant Names Index, archived from the original on 2015-08-13, retrieved 2008-12-30
Lewis, Meriwether; Clark, William (1983), Moulton, Gary E. (ed.), The Journals of the Lewis and Clark Expedition, Volume 12: Herbarium of the Lewis and Clark Expedition, University of Nebraska Press, p. 359, ISBN 978-0-8032-2931-0
Kanda, Ken-ichi; Tsuruta, Haruo (1995-06-01). "Emissions of sulfur gases from various types of terrestrial higher plants". Soil Science and Plant Nutrition. 41 (2): 321–328. Bibcode:1995SSPN...41..321K. doi:10.1080/00380768.1995.10419589. ISSN 0038-0768.