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Ligustrum Japonicum Thunb. SCORE:9.0 RATING TAXON: Ligustrum japonicum SCORE: 9.0 RATING: High Risk Thunb. Taxon: Ligustrum japonicum Thunb. Family: Oleaceae Common Name(s): Japanese privet Synonym(s): L. japonicum var. rotundifolium Blume Japanese wax-leaf privet Ligustrum coriaceum Carrière Japanse liguster wax-leaf privet Assessor: Chuck Chimera Status: Assessor Approved End Date: 21 Aug 2017 WRA Score: 9.0 Designation: H(HPWRA) Rating: High Risk Keywords: Ornamental Tree, Environmental Weed, Toxic, Cold-Stratified, Bird-Dispersed Qsn # Question Answer Option Answer 101 Is the species highly domesticated? y=-3, n=0 n 102 Has the species become naturalized where grown? 103 Does the species have weedy races? Species suited to tropical or subtropical climate(s) - If 201 island is primarily wet habitat, then substitute "wet (0-low; 1-intermediate; 2-high) (See Appendix 2) Intermediate tropical" for "tropical or subtropical" 202 Quality of climate match data (0-low; 1-intermediate; 2-high) (See Appendix 2) High 203 Broad climate suitability (environmental versatility) y=1, n=0 y Native or naturalized in regions with tropical or 204 y=1, n=0 y subtropical climates Does the species have a history of repeated introductions 205 y=-2, ?=-1, n=0 y outside its natural range? 301 Naturalized beyond native range y = 1*multiplier (see Appendix 2), n= question 205 y 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) y 303 Agricultural/forestry/horticultural weed n=0, y = 2*multiplier (see Appendix 2) n 304 Environmental weed n=0, y = 2*multiplier (see Appendix 2) y 305 Congeneric weed n=0, y = 1*multiplier (see Appendix 2) y 401 Produces spines, thorns or burrs y=1, n=0 n 402 Allelopathic y=1, n=0 n 403 Parasitic y=1, n=0 n 404 Unpalatable to grazing animals y=1, n=-1 n 405 Toxic to animals y=1, n=0 y 406 Host for recognized pests and pathogens y=1, n=0 n 407 Causes allergies or is otherwise toxic to humans y=1, n=0 y 408 Creates a fire hazard in natural ecosystems Creation Date: 21 Aug 2017 ( Ligustrum japonicum Page 1 of 18 Thunb.) TAXON: Ligustrum japonicum SCORE: 9.0 RATING: High Risk Thunb. Qsn # Question Answer Option Answer 409 Is a shade tolerant plant at some stage of its life cycle y=1, n=0 y Tolerates a wide range of soil conditions (or limestone 410 y=1, n=0 y conditions if not a volcanic island) 411 Climbing or smothering growth habit y=1, n=0 n 412 Forms dense thickets y=1, n=0 y 501 Aquatic y=5, n=0 n 502 Grass y=1, n=0 n 503 Nitrogen fixing woody plant y=1, n=0 n Geophyte (herbaceous with underground storage organs 504 y=1, n=0 n -- bulbs, corms, or tubers) Evidence of substantial reproductive failure in native 601 y=1, n=0 n habitat 602 Produces viable seed y=1, n=-1 y 603 Hybridizes naturally 604 Self-compatible or apomictic 605 Requires specialist pollinators y=-1, n=0 n 606 Reproduction by vegetative fragmentation y=1, n=-1 y 607 Minimum generative time (years) 1 year = 1, 2 or 3 years = 0, 4+ years = -1 >3 Propagules likely to be dispersed unintentionally (plants 701 y=1, n=-1 n growing in heavily trafficked areas) 702 Propagules dispersed intentionally by people y=1, n=-1 y 703 Propagules likely to disperse as a produce contaminant y=1, n=-1 n 704 Propagules adapted to wind dispersal y=1, n=-1 n 705 Propagules water dispersed y=1, n=-1 n 706 Propagules bird dispersed y=1, n=-1 y 707 Propagules dispersed by other animals (externally) y=1, n=-1 n 708 Propagules survive passage through the gut y=1, n=-1 y 801 Prolific seed production (>1000/m2) Evidence that a persistent propagule bank is formed (>1 802 y=1, n=-1 n yr) 803 Well controlled by herbicides y=-1, n=1 y 804 Tolerates, or benefits from, mutilation, cultivation, or fire y=1, n=-1 y Effective natural enemies present locally (e.g. introduced 805 biocontrol agents) Creation Date: 21 Aug 2017 ( Ligustrum japonicum Page 2 of 18 Thunb.) TAXON: Ligustrum japonicum SCORE: 9.0 RATING: High Risk Thunb. Supporting Data: Qsn # Question Answer 101 Is the species highly domesticated? n Source(s) Notes [Certain cultivars may be less prone to pests or pathogens. Otherwise, no evidence of domestication] "Many cultivars are available and plants grafted onto L. quihoui for protection against nematodes are preferred, when available. `Silver Star͛has deep green leaves mottled with grey and edged in creamy white; Gilman, E.F. & Watson, D.G. 2007. Ligustrum japonicum: `Texanum͛is very similar to the species but is lower-growing and has Japanese Privet. ENH-511. Revised. Institute of Food & denser growth; `Fraseri͛has yellow to yellow-green new growth; Agricultural Sciences, University of Florida, Gainesville FL. `Jack Frost͛has glossy green leaves with a thin edge of creamy white; http://edis.ifas.ufl.edu/st352. [Accessed 17 Aug 2017] `Lake Tresca͛has small leaves and the lower branches droop to form a mound; `Lusterleaf ͛has large, thick leaves; `Suwanee River͛has compact erect branches; and `Variegatum͛has leaves variegated and edged with white. Ligustrum x vicaryi has golden variegated leaves, with bright yellow new growth." 102 Has the species become naturalized where grown? Source(s) Notes WRA Specialist. 2017. Personal Communication NA 103 Does the species have weedy races? Source(s) Notes WRA Specialist. 2017. Personal Communication NA Species suited to tropical or subtropical climate(s) - If 201 island is primarily wet habitat, then substitute "wet Intermediate tropical" for "tropical or subtropical" Source(s) Notes USDA, ARS, Germplasm Resources Information Network. "Native: 2017. National Plant Germplasm System [Online Asia-Temperate Database]. http://www.ars-grin.gov/npgs/index.html. Eastern Asia: Japan - Honshu, - Kyushu, - Ryukyu Islands, - Shikoku; [Accessed 8 Aug 2017] Korea, South; Taiwan" "Seeds work well if cleaned thoroughly and stored at 32-50°F for two Staples, G.W. & Herbst, D.R. 2005. A Tropical Garden Flora to three months before planting. The cold exposure (called - Plants Cultivated in the Hawaiian Islands and Other stratification) is necessary for the embryo inside the seed to develop Tropical Places. Bishop Museum Press, Honolulu, HI fully; without it, germination does not occur." Creation Date: 21 Aug 2017 ( Ligustrum japonicum Page 3 of 18 Thunb.) TAXON: Ligustrum japonicum SCORE: 9.0 RATING: High Risk Thunb. Qsn # Question Answer 202 Quality of climate match data High Source(s) Notes USDA, ARS, Germplasm Resources Information Network. 2017. National Plant Germplasm System [Online Database]. http://www.ars-grin.gov/npgs/index.html. [Accessed ] 203 Broad climate suitability (environmental versatility) y Source(s) Notes Ervin, G. N., Madsen, J. D., & Wersal, R. M. (2007). "Japanese privet will invade both lowland and upland habitats, Invasive Species Fact Sheet: Japanese Privet (Ligustrum including floodplains, forests, wetlands and fields, but it usually is japonicum Thunb.). Mississippi State University: more prevalent in lowland habitats, typically at elevations less than GeoResources Institute. https://www.gri.msstate.edu/. 915m (3000ft). All the privets are frequently seen along roadsides [Accessed 18 Aug 2017] and other disturbed areas." CAB International, 2005. Forestry Compendium. CAB "Taiwan; [Japan] Honshu, Kyushu, Ryukyu Archipelago, Shikoku; International, Wallingford, UK Republic of Korea" Gilman, E.F. & Watson, D.G. 2007. Ligustrum japonicum: Japanese Privet. ENH-511. Revised. Institute of Food & "USDA hardiness zones: 7B through 10A" Agricultural Sciences, University of Florida, Gainesville FL. http://edis.ifas.ufl.edu/st352. [Accessed 17 Aug 2017] Native or naturalized in regions with tropical or 204 y subtropical climates Source(s) Notes CAB International, 2005. Forestry Compendium. CAB "Florida (naturalized) Taiwan; [Japan] Honshu, Kyushu, Ryukyu International, Wallingford, UK Archipelago, Shikoku; Republic of Korea," Randall, R.P. (2017). A Global Compendium of Weeds. 3rd "Ligustrum japonicum ... Preferred Climate/s: Mediterranean, Edition. Perth, Western Australia. R.P. Randall Subtropical, Tropical" Does the species have a history of repeated 205 y introductions outside its natural range? Source(s) Notes Nesom, G. L. (2009). Taxonomic overview of Ligustrum "Ala., Ark., Fla., Ga., La., Miss., S.C., Tenn., Tex., Va.; native to Japan (Oleaceae) naturalized in North America north of Mexico. and Korea; introduced also in West Indies (Puerto Rico), Africa, Phytologia, 91(3), 467-482 Australia, Pacific Islands (Hawaii)." Miller, J.H., Chambliss, E.B. & Loewenstein, N.J. (2015). A Field Guide for the Identification of Invasive Plants in "History and use. Introduced from Japan and Korea in 1845 and Southern Forests. General Technical Report SRSʹϭϭϵ͘ 1794, respectively. Widely planted as ornamentals and escaped." USDA Forest Service, Southern Research Station, Asheville, NC Staples, G.W. & Herbst, D.R. 2005. A Tropical Garden Flora "It is commonly grown in Hawaii as a clipped hedge or background - Plants Cultivated in the Hawaiian Islands and Other or foundation planting, and it is ideal for topiary, something not Tropical Places. Bishop Museum Press, Honolulu, HI often seen in Island gardens." 301 Naturalized beyond native range y Creation Date: 21 Aug 2017 ( Ligustrum japonicum Page 4 of 18 Thunb.) TAXON: Ligustrum japonicum SCORE: 9.0 RATING: High Risk Thunb. Qsn # Question Answer Source(s) Notes "Distribution: A non-native species often seen in cultivation; rarely Nelson, G. 2010. The Trees of Florida. A Reference and and spottily naturalized in moist, mixed woodlands of northern Field Guide. 2nd Edition. Pineapple Press Inc, Sarasota, FL Florida, south to about Volusia County." USDA, ARS, Germplasm Resources Information Network. 2017. National Plant Germplasm System [Online "Naturalized: . natzd. elsewhere" Database]. http://www.ars-grin.gov/npgs/index.html. [Accessed 16 Aug 2017] "Reported occurrences of the different Ligustrum spp. in North Batcher, M.S.
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