Elaeocarpus hainanensis Oliv., Elaeocarpaceae

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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 1 (Go to the risk assessment)

Common name(s): [more details]

Chinese: shui shi rong

Habit:  shrub/tree

Description:  "Shrubs or small trees, to 5 m tall. Branchlets glabrous or nearly so. Leaves clustered at twig apices; petiole 1-2 cm; leaf blade narrowly lanceolate, oblanceolate, or narrowly oblong, (4-)7-15(-18) x 1.5-3(-3.5) cm, papery, abaxially pubescent, adaxially glabrous or slightly pubescent on midvein only, lateral veins 14-30 per side, prominent on both surfaces, veinlets slightly prominent adaxially, base cuneate and tapered toward end, decurrent, margin denticulate, apex acuminate. Racemes in axils of current leaves, 5-8 cm, 2-6-flowered in upper part; peduncles puberulent, glabrescent. Pedicel 2-5 cm, puberulent; bracts sessile, persistent, leaflike, ovate or elliptic, 1-1.6 x 0.7-1 cm, veins and veinlets conspicuous, margin dentate, base rounded or auriculate. Flowers 3-4 cm in diam. Calyx lobes 5, lanceolate, 1.2-2 cm, abaxially puberulent, pubescent on midvein and upper 1/2 only. Petals 5, white, ca. as long as sepals, obovate, ciliate along margin, abaxially densely rust-colored yellow tomentose at base, adaxially tomentose, apex laciniate; lobes 30-46, 4-6 mm. Stamens 63-75, ca. as long as petals, puberulent; anthers with awn ca. 4 mm. Disk multi-lobed, tomentose. Ovary 2-loculed, glabrous or nearly so; ovules 2 per locule; style ca. 1 cm, pubescent in lower 1/2. Drupe spindle-shaped, 4-5 cm, ca. 1.2 cm in diameter, both ends acuminate; endocarp hard, lacunose, 1-loculed. Seeds ca. 2 cm"  (Flora of China online).

Habitat/ecology:  "Moist places, streamsides; 200-500 m"  (Flora of China online).

Propagation:  Seed

Native range:  China, Thailand and Vietnam  (Flora of China online).

Presence:

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	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)
China China	Hong Kong	introduced cultivated	Wu, Te-lin (2001) (p. 96)
Singapore Singapore	Singapore (Republic of)	introduced cultivated	Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 38) Cultivated only
Thailand Thailand	Thailand (Kingdom of)	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)
Vietnam Vietnam	Vietnam (Socialist Republic of)	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011)

Additional information:
Additional online information about Elaeocarpus hainanensis is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Elaeocarpus hainanensis as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Elaeocarpus hainanensis may be available from the Germplasm Resources Information Network (GRIN).

References:

Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. 2009. A checklist of the total vascular plant flora of Singapore: native, naturalised and cultivated species. Raffles Museum of Biodiversity Research, National University of Singapore. 273 pp.

Wu, Te-lin. 2001. Check List of Hong Kong Plants. Hong Kong Herbarium and the South China Institute of Botany. Agriculture, Fisheries and Conservation Department Bulletin 1 (revised). 384 pp.

Zhengyi, Wu/Raven, Peter H./Deyuan, Hong. 2011. Flora of China (online resource).