Pacific Island Ecosystems at Risk (PIER)

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Sauropus androgynus
(L.) Merr., Euphorbiaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 4 (Go to the risk assessment).

Common name(s): [more details]

Chinese: shou gong mu

English: chekkurmanis, star-gooseberry

Habit:  shrub

Description:  "Shrubs 1-3 m tall, erect, monoecious, glabrous throughout; branchlets angular when young, terete with age, slender, green. Stipules lanceolate or linear-lanceolate, 1.5-3 mm; petiole 2-4 mm; leaf blade ovate-lanceolate, oblong-lanceolate, or lanceolate, 3-10 x 1.5-3.5 cm, submembranous or thinly papery, base cuneate, rounded, or truncate, apex acuminate; venation pinnate, lateral veins 5-7 pairs, elevated abaxially, flattened adaxially, reticulate veins obscure. Inflorescence axillary, 1- or 2-flowered, or several male and female per cluster. Male flowers: pedicels slender, 5-7.5 mm; calyx shallowly disk-shaped, 5-12 mm in diameter, shallowly 6-fid; sepals obovate; disk segments 6, opposite to sepals, incurved distally, covering anthers; stamens 3; fila-ments connate; anthers extrorse. Female flowers usually solitary, axillary; pedicel 6-8 mm; calyx red, 6-lobed; sepals obovate or obovate-triangular, 5-6 x 3-5.5 mm, base attenuate into a short claw; disk absent; ovary depressed globose, ca. 0.7 x 1.5 mm, 3-locular; styles 3, bifid. Fruiting pedicel 0.5-1 cm; persistent calyx red; capsule white, depressed globose or globose, ca. 1.2 x 1.7 cm, thinly crustaceous. Seeds black, triquetrous, ca. 7 x 5 mm"  (Flora of China online).

Habitat/ecology:  In China (native), "slopes with brushwood, sunny forest margins; 100-400 m"  (Flora of China online).

Propagation:  Seed

Native range:  "India and S China, through Indo-China and Malesia, to the Philippines and New Guinea"  (Flora of Australia online).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
cultivated
Frohlich, Danielle/Lau, Alex (2008) (pp. 5-6)
Voucher cited: D. Frohlich & A. Lau s.n. (BISH 726888)
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1973) (voucher ID: BISH 402881)
Taxon name on voucher: Sauropus androgynus (L.) Merr.
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Solomon Islands
Solomon Islands
Solomon Islands introduced
cultivated
Hancock, I. R./Henderson, C. P. (1988) (p. 107)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
China
China
China (People's Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore
Singapore
Singapore (Republic of) native
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 77)
Common
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Indian Ocean offshore islands)
Christmas Island Group
Christmas Island introduced
invasive
cultivated
Swarbrick, J. T. (1997) (p. 126)
garden remnant
Australia (Indian Ocean offshore islands)
Christmas Island Group
Christmas Island introduced
invasive
cultivated
Australian Biological Resources Study (2013)
Vouchers cited: D.A. Powell 41 (K), B.A. Mitchell 87 (CBG, K), R. Shivas 808 (PERTH), D.J. & B.P. Du Puy CI66 (CBG, K)
Uncommon, having escaped from cultivation and become naturalised in a few areas.
Australia (Indian Ocean offshore islands)
Cocos (Keeling) Islands
Cocos (Keeling) Islands introduced
invasive
Australian Biological Resources Study (2013)
Voucher cited: I.R. Telford 10072 & C. Howard (CBG, K)
Naturalised on Home Is. in disturbed strand forest.


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This page was created on 25 OCT 2010 and was last updated on 30 DEC 2011.