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TAXON:Gardenia Volkensii SCORE:-4.0 RATING TAXON: Gardenia volkensii SCORE: -4.0 RATING: Low Risk Taxon: Gardenia volkensii Family: Rubiaceae Common Name(s): bushveld gardenia Synonym(s): Gardenia spatulifolia Stapf & Hutch. Transvaal gardenia Assessor: No Assessor Status: Assessor Approved End Date: 31 Dec 2020 WRA Score: -4.0 Designation: L Rating: Low Risk Keywords: Tropical, Shrub/Tree, Ornamental, Fragrant Flowers, Animal-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) High 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) 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 n 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) n 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) n 305 Congeneric weed 401 Produces spines, thorns or burrs y=1, n=0 n 402 Allelopathic 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 n 406 Host for recognized pests and pathogens 407 Causes allergies or is otherwise toxic to humans 408 Creates a fire hazard in natural ecosystems 409 Is a shade tolerant plant at some stage of its life cycle Creation Date: 31 Dec 2020 (Gardenia volkensii) Page 1 of 15 TAXON: Gardenia volkensii SCORE: -4.0 RATING: Low Risk Qsn # Question Answer Option Answer 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 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 n 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 706 Propagules bird dispersed y=1, n=-1 n 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 y yr) 803 Well controlled by herbicides 804 Tolerates, or benefits from, mutilation, cultivation, or fire Effective natural enemies present locally (e.g. introduced 805 biocontrol agents) Creation Date: 31 Dec 2020 (Gardenia volkensii) Page 2 of 15 TAXON: Gardenia volkensii SCORE: -4.0 RATING: Low Risk Supporting Data: Qsn # Question Answer 101 Is the species highly domesticated? n Source(s) Notes Kiamba, J. K., & Schmidt, L. H. (2009). Gardenia volkensii K. Shum ssp. spathulifolia (Stapf & Hutch.) Verdc. Seed No evidence Leaflet No. 145. Forest & Landscape Denmark, Hørsholm 102 Has the species become naturalized where grown? Source(s) Notes WRA Specialist. (2020). Personal Communication NA 103 Does the species have weedy races? Source(s) Notes WRA Specialist. (2020). Personal Communication NA Species suited to tropical or subtropical climate(s) - If 201 island is primarily wet habitat, then substitute "wet High tropical" for "tropical or subtropical" Source(s) Notes "Native: USDA, Agricultural Research Service, National Plant AFRICA Germplasm System. (2020). Germplasm Resources Northeast Tropical Africa: Ethiopia; Somalia Information Network (GRIN-Taxonomy). National East Tropical Africa: Kenya; Tanzania; Uganda Germplasm Resources Laboratory, Beltsville, Maryland. South Tropical Africa: Mozambique; Zambia; Zimbabwe https://npgsweb.ars-grin.gov/. [Accessed 31 Dec 2020] Southern Africa: Botswana; South Africa" 202 Quality of climate match data High Source(s) Notes USDA, Agricultural Research Service, National Plant Germplasm System. (2020). Germplasm Resources Information Network (GRIN-Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland. https://npgsweb.ars-grin.gov/. [Accessed 31 Dec 2020] 203 Broad climate suitability (environmental versatility) Source(s) Notes Kiamba, J. K., & Schmidt, L. H. (2009). Gardenia volkensii "It occurs under a wide range of climates from semi-humid to semi- K. Shum ssp. spathulifolia (Stapf & Hutch.) Verdc. Seed arid." Leaflet No. 145. Forest & Landscape Denmark, Hørsholm Possibly environmentally versatile. Collected from 10 - 1410 m Tropicos.org. (2020). Missouri Botanical Garden. elevation in Kenya & Tanzania, but only at lower tropical latitudes http://www.tropicos.org/. [Accessed 31 Dec 2020] (between 01°53'00"S & 04°57'06"S) Creation Date: 31 Dec 2020 (Gardenia volkensii) Page 3 of 15 TAXON: Gardenia volkensii SCORE: -4.0 RATING: Low Risk Qsn # Question Answer Native or naturalized in regions with tropical or 204 y subtropical climates Source(s) Notes "Widely distributed in east, central and southern Africa, from Somalia in the north to Transvaal and Namibia in the south. It occurs Kiamba, J. K., & Schmidt, L. H. (2009). Gardenia volkensii under a wide range of climates from semi-humid to semi-arid. In K. Shum ssp. spathulifolia (Stapf & Hutch.) Verdc. Seed Kenya it is found from the coast to the Lake Victoria basin and also in Leaflet No. 145. Forest & Landscape Denmark, Hørsholm northern Kenya in open woodland, often many concentrated in one area. The species has been widely planted as an ornamental park tree and garden plant throughout the tropics." Imada, C. (2019). Hawaiian Naturalized Vascular Plants Checklist (February 2019 update). Bishop Museum No evidence Technical Report 69. Bishop Museum, Honolulu, HI Does the species have a history of repeated 205 y introductions outside its natural range? Source(s) Notes Kiamba, J. K., & Schmidt, L. H. (2009). Gardenia volkensii "The species has been widely planted as an ornamental park tree K. Shum ssp. spathulifolia (Stapf & Hutch.) Verdc. Seed and garden plant throughout the tropics." Leaflet No. 145. Forest & Landscape Denmark, Hørsholm 301 Naturalized beyond native range n Source(s) Notes "Naturalized and widely cultivated exotics are marked by asterisks in the enumeration." "Table 1. Exotics of the Doon Valley Negi, P. S., & Hajra, P. K. (2007). Alien flora of Doon Valley, (enumeration)" [Includes Gardenia spatulifolia, a synonym for Northwest Himalaya. Current Science 92(7): 968-978 Gardenia volkensii subsp. spatulifolia. Not marked with an asterisk, so presumably not naturalized or widely cultivated] [Lists Gardenia spatulifolia (syn. = Gardenia volkensii subsp. Randall, R.P. (2012). A Global Compendium of Weeds. 2nd spatulifolia) as naturalized, citing Negi, P. S., & Hajra, P. K. (2007). Edition. Department of Agriculture and Food, Western Alien flora of doon valley, northwest Himalaya. Current science, 92 Australia (7), 968-978. However, Negi et al. (2007) do not indicate that this species is naturalized, but merely present in Doon Valley] Cited as a weed in India, but a subsequent search of the cited Randall, R.P. (2017). A Global Compendium of Weeds. 3rd website (IUCN (2017) Global Register of Introduced and Invasive Edition. Perth, Western Australia. R.P. Randall Species (GRIIS) IUCN SSC Invasive Species Specialist Group. URL: http://griis.org/) indicates that it is present, but not invasive Imada, C. (2019). Hawaiian Naturalized Vascular Plants Checklist (February 2019 update). Bishop Museum No evidence Technical Report 69. Bishop Museum, Honolulu, HI 302 Garden/amenity/disturbance weed n Source(s) Notes Cited as a weed in India, but a subsequent search of the cited Randall, R.P. (2017). A Global Compendium of Weeds. 3rd website (IUCN (2017) Global Register of Introduced and Invasive Edition. Perth, Western Australia. R.P. Randall Species (GRIIS) IUCN SSC Invasive Species Specialist Group. URL: http://griis.org/) indicates that it is present, but not invasive Creation Date: 31 Dec 2020 (Gardenia volkensii) Page 4 of 15 TAXON: Gardenia volkensii SCORE: -4.0 RATING: Low Risk Qsn # Question Answer Randall, R.P. (2012). A Global Compendium of Weeds. 2nd Edition. Department of Agriculture and Food, Western No evidence Australia 303 Agricultural/forestry/horticultural weed n Source(s) Notes Cited as a weed in India, but a subsequent search of the cited Randall, R.P. (2017). A Global Compendium of Weeds. 3rd website (IUCN (2017) Global Register of Introduced and Invasive Edition. Perth, Western Australia. R.P. Randall Species (GRIIS) IUCN SSC Invasive Species Specialist Group. URL: http://griis.org/) indicates that it is present, but not invasive Randall, R.P. (2012). A Global Compendium of Weeds. 2nd Edition. Department of Agriculture and Food, Western No evidence Australia 304 Environmental weed n Source(s) Notes Cited as a weed in India, but a subsequent search of the cited Randall, R.P. (2017). A Global Compendium of Weeds. 3rd website (IUCN (2017) Global Register of Introduced and Invasive Edition.
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