Lysimachia fortunei Maxim., Primulaceae

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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 8 (Go to the risk assessment)

Common name(s): [more details]

Chinese: hong gen cao

Habit:  herb

Description:  "An erect perennial herb; stolons creeping; stems terete, with small black spots, 30-60 cm high, simple or with few branches above. Leaves subopposite or alternate, elliptical or lanceolate, 4-7 cm long, 1-2 cm wide, the apex acute or obtuse, entire, sessile or subsessile. Racemes terminal, densely many-flowered, 10-20 cm long, glabrous or minutely glandular hairy, the pedicels short, about 3 mm long; the bracts acicular 3-5 mm long. Flowers white, 5-6 mm across; calyx 5-parted, segments ovate-oblong, acute or obtuse, membranous and ciliate at margin, with black glandular dots, ca. 2 mm long; corolla-lobes oblong, rounded, obtuse, ca. 3-5 mm long; stamens 5, inserted on the petals, filaments short, ca. 0.5 mm long; anthers broad ovate, ca. 0.6 mm long; ovary globose, style ca. 1 mm long. Capsules globose, 2-2.5 mm in diameter, style persistent" (Digital Flora of Taiwan).

Habitat/ecology:  "In wet places by rivers and ponds in lowlands" (Digital Flora of Taiwan).

Propagation:  Seed

Native range:  Japan, Korea, the Ryukyus, Indo-China, Taiwan and SE China. (Digital Flora of Taiwan).

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	U.S. Dept. Agr., Agr. Res. Serv. (2011)
China China	Hong Kong	native	Wu, Te-lin (2001) (p. 121)
Japan Japan	Japan (country)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
North Korea North Korea	North Korea (Democratic People's Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
South Korea South Korea	South Korea (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Taiwan Taiwan	Taiwan Island	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Taiwan Taiwan	Taiwan Island	native	Ching-I Peng, ed. (2011) "In wet places by rivers and ponds in lowlands, in northern part of the island".

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

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

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

References:

Ching-I Peng, ed. 2011. Digital flora of Taiwan (online resource).

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

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).