Euphorbia milii Des Moul.

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Habitat & Distribution:

Cultivated and escaped. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [native to Madagascar; widely cultivated elsewhere].

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthoreFloras.org Copyright © Missouri Botanical Garden
Sourcehttp://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200012571

Frequency:

Very rare possible escape

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe
Sourcehttp://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=136180

IUCN Red List Assessment:
Red List Category

DD
Data Deficient

Red List Criteria

Version

3.1

Year Assessed

2004
  • Needs updating

Assessor/s

Haevermans, T.

Reviewer/s

Rajeriarison, C., Labat, J.N., Lowry, P. & Randrianjohany, E. (Madagascar Plants RLA)

Contributor/s

Justification

This is a widely grown ornamental species that is found in gardens all over the world. The species comprises eleven described varieties, but is in urgent need of taxonomic revision. Many of the plants in cultivation are incorrectly identified. Most of the varieties described are from very poorly known or even unknown locations. The ones that are known, tend to be very restricted and are often under threat due to loss and degradation of the habitat. However, until the taxonomy is fully resolved and full field surveys have been conducted, it is best to consider this species complex as Data Deficient.
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/44389

Description:

Shrubs, scrambling, many branched, 60-90 cm. Stems obscurely 3-5-angled, densely spiny. Leaves alternate, clustered at stem apex; stipules forming spines 1-1.3(-2) cm; petiole absent or nearly so; leaf blade obovate to oblong-oblanceolate, 1.5-5 × 0.8-1.8 cm, base attenuate, margin entire, apex rounded. Cyathia in subapical, dichasial cymes, peduncle 4-7 cm; cyathophylls 2, reniform-rounded, 8-10 × 12-14 mm, usually bright red (pink, white, or yellow in some cultivars), apex rounded; involucre campanulate, 3-4 × 3.5-4 mm, lobes 5, lanceolate; glands 5, reniform-rounded, ca. 1 × 2 mm, yellow-red. Male flowers many; bracteoles linear, apex pilose. Female flower: ovary smooth and glabrous, usually included with involucre; styles connate below middle; stigma 2-lobed. Capsule 3-lobed-ovoid, ca. 3.5 × 4 mm, smooth and glabrous. Seeds ovoid-terete, ca. 2.5 × 2 mm, gray-brown, reticulate; caruncle absent. Fl. and fr. all year.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthoreFloras.org Copyright © Missouri Botanical Garden
Sourcehttp://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200012571

National NatureServe Conservation Status:
United States

Rounded National Status Rank: NNA - Not Applicable

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorAnnable, C., NatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Euphorbia+milii

Description:

Very spiny shrub. Leaves 6 × 2 cm, ovate. Paired ± circular bright red petaloid bracts occur below the sessile cyathia.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe
Sourcehttp://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=136180

NatureServe Conservation Status:

Rounded Global Status Rank: GNR - Not Yet Ranked

Reasons: Native to Madagascar.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorAnnable, C., NatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Euphorbia+milii

Miscellaneous Details:

"Notes: Plains to High Altitude, Cultivated, Native of Madagascar"

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/Author"G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram", India Biodiversity Portal
Sourcehttp://indiabiodiversity.org/species/show/266512

Population:

Population Trend

Unknown
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/44389

Range Description:

Madagascar: Fort Dauphin area; 20 km south of Betroka; mountains near Ihosy, possibly between Antsirabe and Fianarantsoa; possibly north of Antananarivo, near Maevatanana; on the High Plateau near Imerina; Zombitse forest (Sakaraha) and at Le Table mountain near Tulear.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/44389
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