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WRA Species Report Family: Lamiaceae Taxon: Lavandula dentata Synonym: Stoechas dentata (L.) Mill. Common Name: French lavender fringed lavender toothed lavender Questionaire : current 20090513 Assessor: HPWRA OrgData Designation: L Status: Assessor Approved Data Entry Person: HPWRA OrgData WRA Score 1 101 Is the species highly domesticated? y=-3, n=0 n 102 Has the species become naturalized where grown? y=1, n=-1 103 Does the species have weedy races? y=1, n=-1 201 Species suited to tropical or subtropical climate(s) - If island is primarily wet habitat, then (0-low; 1-intermediate; 2- Intermediate substitute "wet tropical" for "tropical or subtropical" high) (See Appendix 2) 202 Quality of climate match data (0-low; 1-intermediate; 2- High high) (See Appendix 2) 203 Broad climate suitability (environmental versatility) y=1, n=0 n 204 Native or naturalized in regions with tropical or subtropical climates y=1, n=0 n 205 Does the species have a history of repeated introductions outside its natural range? y=-2, ?=-1, n=0 y 301 Naturalized beyond native range y = 1*multiplier (see y Appendix 2), n= question 205 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) 303 Agricultural/forestry/horticultural weed n=0, y = 2*multiplier (see n Appendix 2) 304 Environmental weed n=0, y = 2*multiplier (see n Appendix 2) 305 Congeneric weed n=0, y = 1*multiplier (see y Appendix 2) 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 y 405 Toxic to animals y=1, n=0 n 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 n 408 Creates a fire hazard in natural ecosystems y=1, n=0 n 409 Is a shade tolerant plant at some stage of its life cycle y=1, n=0 n 410 Tolerates a wide range of soil conditions (or limestone conditions if not a volcanic island) y=1, n=0 y Print Date: 3/1/2013 Lavandula dentata (Lamiaceae) Page 1 of 9 411 Climbing or smothering growth habit y=1, n=0 n 412 Forms dense thickets y=1, n=0 n 501 Aquatic y=5, n=0 n 502 Grass y=1, n=0 n 503 Nitrogen fixing woody plant y=1, n=0 n 504 Geophyte (herbaceous with underground storage organs -- bulbs, corms, or tubers) y=1, n=0 n 601 Evidence of substantial reproductive failure in native habitat y=1, n=0 n 602 Produces viable seed y=1, n=-1 y 603 Hybridizes naturally y=1, n=-1 604 Self-compatible or apomictic y=1, n=-1 605 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, 2 4+ years = -1 701 Propagules likely to be dispersed unintentionally (plants growing in heavily trafficked y=1, n=-1 areas) 702 Propagules dispersed intentionally by people y=1, n=-1 y 703 Propagules likely to disperse as a produce contaminant y=1, n=-1 704 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 n 707 Propagules dispersed by other animals (externally) y=1, n=-1 708 Propagules survive passage through the gut y=1, n=-1 801 Prolific seed production (>1000/m2) y=1, n=-1 n 802 Evidence that a persistent propagule bank is formed (>1 yr) y=1, n=-1 803 Well controlled by herbicides y=-1, n=1 804 Tolerates, or benefits from, mutilation, cultivation, or fire y=1, n=-1 805 Effective natural enemies present locally (e.g. introduced biocontrol agents) y=-1, n=1 Designation: L WRA Score 1 Print Date: 3/1/2013 Lavandula dentata (Lamiaceae) Page 2 of 9 Supporting Data: 101 2013. Kew Royal Botanic Gardens. Plants & [Is the species highly domesticated? No evidence] "Two varieties of L. dentata are Fungi - Lavandula dentata (fringed lavender). currently recognised: L. dentata var. dentata, with greyish-green leaves, and L. http://www.kew.org/plants-fungi/Lavandula- dentata var. candicans, with more pronounced silvery-grey leaves. Variants of L. dentata.htm [Accessed 27 Feb 2013] dentata var. dentata occasionally have white or pink flowers." 101 2013. WRA Specialist. Personal Communication. [Is the species highly domesticated? No] Assessment is for wild type of plant 102 2013. WRA Specialist. Personal Communication. NA 103 2013. WRA Specialist. Personal Communication. NA 201 2001. Hanelt, P. (ed.). Mansfeld's Encyclopedia of [Species suited to tropical or subtropical climate(s) 1-Intermediate] "North-western Agricultural and Horticultural Crops (except Africa to south-eastern Spain." Ornamentals), Volume 1. Springer-Verlag, Berlin, Heidelberg, New York 202 2001. Hanelt, P. (ed.). Mansfeld's Encyclopedia of [Quality of climate match data 2-High] Agricultural and Horticultural Crops (except Ornamentals), Volume 1. Springer-Verlag, Berlin, Heidelberg, New York 203 2005. Staples, G.W./Herbst, D.R.. A Tropical [Broad climate suitability (environmental versatility)? No] "Several species of Garden Flora - Plants Cultivated in the Hawaiian Lavandula Linnaeus appear in local garden shops and nurseries from time to time, Islands and Other Tropical Places. Bishop although they do not thrive in our humid climate." Museum Press, Honolulu, HI 203 2013. Dave's Garden. PlantFiles: Fringed [Broad climate suitability (environmental versatility)? No] "Hardiness: Lavender, French Lavender - Lavandula dentata. USDA Zone 9b: to -3.8 °C (25 °F) http://davesgarden.com/guides/pf/go/288/#axzz2MUSDA Zone 10a: to -1.1 °C (30 °F) EypjdKB [Accessed 28 Feb 2013] USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)" 204 2013. Kew Royal Botanic Gardens. Plants & [Native or naturalized in regions with tropical or subtropical climates? No] "Native Fungi - Lavandula dentata (fringed lavender). to southern and eastern Spain, Gibraltar, the Balearic Islands, north-western http://www.kew.org/plants-fungi/Lavandula- Africa, Ethiopia, Eritrea, Israel, Jordan and the Arabian Peninsula. It is naturalised dentata.htm [Accessed 27 Feb 2013] elsewhere around the Mediterranean and in Western Australia, New Zealand and California." 205 1988. Webb, C. J./Sykes, W.R./Garnock-Jones, [Does the species have a history of repeated introductions outside its natural P.J.. Flora of New Zealand, Volume IV: range?? Yes] "Toothed lavender is a very common cultigen in lowland areas of the Naturalised pteridophytes, gymnosperms, North Id and northern parts of the South Id. It is distinguished from all other spp. in dicotyledons. Botany Division, DSIR, sect. Stoechas by its pinnate or toothed lvs. The common name French lavender Christchurch, New Zealand is sometimes wrongly applied to this sp.; it should be reserved for L. stoechas." http://FloraSeries.LandcareResearch.co.nz 205 2013. Kew Royal Botanic Gardens. Plants & [Does the species have a history of repeated introductions outside its natural Fungi - Lavandula dentata (fringed lavender). range? Yes] "However, it has been known and grown in the Arab world from time http://www.kew.org/plants-fungi/Lavandula- immemorial, and today is grown in gardens across Europe, Australia, South Africa dentata.htm [Accessed 27 Feb 2013] and North America." 301 1987. Esler, A.E.. The naturalisation of plants in [Naturalized beyond native range?] "Class 2 aliens are wild species occurring in urban Auckland, New Zealand 3. Catalogue of lower numbers and/or with fairly limited distribution." [Lavandula dentata = Class 2] naturalised species. New Zealand Journal of Botany. 25(4): 539-558. 301 1988. Webb, C. J./Sykes, W.R./Garnock-Jones, [Naturalized beyond native range? Yes] "N.: naturalised around old house sites in P.J.. Flora of New Zealand, Volume IV: 2 former settlements on Rangitoto Id. " Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch, New Zealand http://FloraSeries.LandcareResearch.co.nz 301 1989. Webb, C.J./Sykes, W.R./Garnock-Jones, [Naturalized beyond native range?] "Rare escape from cultivation; Auckland area P.J./Given, D.R./Brownsey, P.J.. Checklist of (Rangitoto I.)." dicotyledons, gymnosperms, and pteridophytes naturalised in New Zealand: Additional records and corrections. New Zealand Journal of Botany. 27(2): 139-162. 301 2004. Guillot Ortiz, D./Van Der Meer, P.. Algunas [Naturalized beyond native range? Yes] "La primera seria la cv. "Monet", citas de neófitos en la Comunidad Valenciana. naturalizada en una amplia area que abarca desde la zona donde ha sido citada Flora Montiberica. 27: 5-7.. hasta el termino de Segorbe, a ambos lados la aotovia. La segunda seria una forma gris de la var. candicans, citada por McNaughton (2000)." [Partial Translation: "naturalized over a wide area … on both sides of the highway."] Print Date: 3/1/2013 Lavandula dentata (Lamiaceae) Page 3 of 9 301 2005. de Lange, P. J./Gardner, R. O./Sykes, W. [Naturalized beyond native range?] "The first record for this plant wild on Norfolk I. R./Crowcroft, G. M./Cameron, E. K./Stalker, (as a garden escape) is AK 237687, P. J. de Lange NF 115 & G. M. Crowcroft, 9 F./Christian, M. L./Braggins, J. E.. Vascular flora Nov 1998, Kingston, Quality Row, "one plant on calcarenite stone wall, common in of Norfolk Island: some additions and taxonomic garden 200 m away". This species of lavender is commonly cultivated throughout notes. New Zealand Journal of Botany. 43: 563- the main settlement of the island." 596. 301 2007. Hussey, B.M.J./Keighery, G. J./Dodd, [Naturalized beyond native range?] "Less common is L. dentata (French lavender), J./Lloyd, S.G./Cousens, R.D.
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