Editor(s):
D.H. Schnabel & R. Riina


  Name:      Euphorbia polygona   Haw., Misc. Nat. 184. 1803.

Status:accepted_name
Accepted Name:None
Basionym:None
Common Names:None
TOLKIN GUID:e65bb102-0047-440e-a2b5-ff03247e3cc6
TOLKIN GUID URL:http://app.tolkin.org/guids/e65bb102-0047-440e-a2b5-ff03247e3cc6
Type Details:
Species: None
Type Collection:
No original material designated or preserved (based on plants introduced before 1790)
Type Date: None
Type Locality: None
Type Herbaria:
Neotype: South Africa, Cape, Witpoortsberg, 2000-3000 ft, Drege 8212, S [2583], designated by Bruyns (Bothalia 42: 240. 2012); duplicates: BM, HBG - 2 sheets, K, MEL, MO, P, S, TCD, W- 3 sheets. This was superceded by S. Carter (Euphorbia World 10: 18. 2014), who designated Drege 7 at K as the new neotype (collected 18 Nov. 1912, near Port Elizabeth, South Africa), so that the same specimen would not serve as the type of both E. horrida and E. polygona.
Neo Type: None
Synonyms: show/hide
Name
Namestatus
Euphorbia horrida var. horrida
Synonym
Euphorbia polygona var. polygona
Synonym
Euphorbia cucumerina Willd., Sp. Pl. 2: 886. 1799.
Synonym
Euphorbia horrida Boiss., Cent. Euphorb. 27. 1860.
Synonym
Euphorbia horrida var. striata A.C. White, R.A. Dyer & B. Sloane, Succ. Euphorb. 964. 1941.
Synonym
Euphorbia horrida var. noorsveldensis A.C. White, R.A. Dyer & B. Sloane, Succ. Euphorb. 965. 1941.
Synonym
Euphorbia horrida var. major A.C. White, R.A. Dyer & B. Sloane, Succ. Euphorb. 965. 1941.
Synonym
Euphorbia polygona var. nivea D.H. Schnabel, Euphorbia World 7(1): 25. 2011.
Synonym
Euphorbia polygona var. hebdomadalis D.H. Schnabel, Euphorbia World 8(3): 10-15. 2012.
Synonym
Euphorbia polygona var. exilis D.H. Schnabel, Euphorbia World 8(1): 20. 2012.
Synonym
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Subgenus:
Athymalus
Section:
Anthacanthae
Subsection:
Florispinae ser. Meleuphorbia
Ingroup Clade:
A
Description: None
Habitat: None
Phylogenetic Relationships: None
Comments: None
Chromosome Number: None
Uses: None
Toxicity: None
Conservation Status: None
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Individuals of Euphorbia horrida in their natural habitat (Becker & Moller 1315, UNIN).

Photographer: A. Moller.

Dimensions: 950 X 634
General Distribution:
South Africa (Eastern Cape). From Bruyns book ms: widespread in the sandstone mountains of the southern and eastern parts of the former Cape Province, in ranges such as the Suurberg, Groot Winterhoek, Kouga and Baviaanskloof Mountains. In these, it is of fairly general ocurrence from near Uniondale in the west to Grahamstown and Bathurst in the east, usually growing in shallow soils on drier, rocky outcrops in the wetter areas. It is also found on the slopes of the considerably drier sandstone mountains bordering the Great Karoo between Prince Albert, Willowmore, Steytlerville and Kommadagga. From west and north-west of Willowmore to north-east of Jansenville (on the southern Great Karoo) it also occurs sporadically in flat to hilly country on shales to the north of the sandstone mountains. Further west it is known from rather isolated populations along the Swartberg at Seweweeks Poort, along a few ridges south of the Cango Caves near Oudtshoorn, Meiringspoort and along the rocky edges of some of the north-facing gorges in the Rooiberg to the south of Calitzdorp
Collector
Collection number
Country
Institution code
Becker, R.
1323
South Africa
MICH, PRE, UNIN
Becker, R.
847
South Africa
MICH, PRE, UNIN
Morawetz, J. J.
263
South Africa
MICH, NBG
Morawetz, J. J.
264
South Africa
MICH, NBG
Berry, P.E.
7784
U.S.A. (In cultivation)
MICH
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DNA Sample(s): 6320
DNA Sample(s) Sequences
References:

Forster, P.I. (2007). Seed dispersal in the Euphorbieae (Euphorbiaceae). Euphorbia World 3(2), 26-30.

Jankalski, S. (2005). Hybrids in succulent Euphorbia. Euphorbia World 1(1), 17-20.

Marx, G. (2009). Euphorbia polygona 'Snowflake' in the wild. Aloe 46(3), 59-61.

Marx, G. (1994). The succulent euphorbias of the southeastern Cape Province: part two: shrubs and trees. Euphorbia J. 9, 63-84.

Schnabel, D.H. (2011). A new variety of Euphorbia polygona Haw. from South Africa – Euphorbia polygona var. exilis D.H.Schnabel. Euphorbia World 8(1), 20-24.

Schnabel, D.H. (2011). The mysterious 'Snowflake' Euphorbia - a new variety of Euphorbia polygona Haw.. Euphorbia World 7(1), 20-26.

Schnabel, D.H. (2013). A morphology based taxonomic revision of the Euphorbia polygona species complex. Euphorbia World 9(2), 5-26.

White, A., Dyer, R.A., and Sloane, B.L. (1941). The succulent Euphorbieae (Southern Africa). Abbey Garden Press, Pasadena, CA.

TreeBASE TreeBASE None
NCBI NCBI National Center for Biotechnology Information None
uBio uBio Indexing & Organizing Biological Names None
GBIF GBIF Global Biodiversity Information Facility None
EOL EOL Encyclopedia Of Life None
JSTOR JSTOR JSTOR Plant Science
IPNI IPNI International Plant Names Index
Tropicos Tropicos

This project's data is shared under the CC-BY license.