Jepson Flora Project: Jepson Interchange for California Floristics    
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Hedera canariensis Willd.

Information from the Index of California Plant Names (ICPN)
Current Jepson Flora Project Synonyms Hedera helix L. subsp. canariensis (Willd.) Cout.
Initial Editorial Analysis 10 Feb 2003
Source of Report for California  
a Preston e-mail of 5 Jul 2000, "Naturalized in CA. Riparian areas; SCo; native to w Medit, Canary Is.; California Exotic Pest Plant Council (CalEPPC). 1999. Exotic pest plants of greatest concern in California. Oct, 1999. San Juan Capistrano, CA."
b Hrusa et al., ms later published in Madrono 49(2)61-98. 2002: DISTRIBUTION: CCo, SnFrB.; STATUS: fully naturalized.; NOTES: Occurring throughout the Bay Area, where capable of being a serious pest plant; probably more common than H. helix L.
c Hrusa et al., Madrono 49(2)61-98. 2002: DIST: CCo, SCo, SnBr, SnFrB, SnGb: Hrusa et al. Current Status: Naturalized in wildlands: DOC: Alameda Co.: Albany Hill, abundant in oak forest. Jan. 14, 1995, B. Ertter 13918 (UC); Orange Co.: Trabuco Canyon. May 13, 1966, E.W. Lathrop 6297 (UCR); San Bernardino Co.: upper Waterman Canyon, San Bernardino Mtns. Dec. 23, 1998, A.C. Sanders 22369 (UCR); Dick Stoddard Canyon, San Gabriel Mtns. Jan. 15, 1994, Swinney 2695 (UCR); NOTES: Differs from H. helix in having larger leaves with fewer (most often only 3), more rounded lobes and fainter veins; more robust stems that are more shallowly rooted at the nodes; and rusty hairs on the growing tips that are basally fused into tightly appressed, stellate-peltate trichomes (vs. white and &plus_minus; spreading in H. helix). Some naturalized forms not clearly separable from H. helix, needs further study. occurring throughout the San Francisco Bay Area, where capable of being a serious pest plant; probably more common than H. helix in that region.
Initial Editorial Comments in no way mentioned in Kartesz & Meacham; according to Source c, in California naturalized in wildlands, indicated in CCo, SCo, SnBr, SnFrB, SnGb
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 22 Jan 2013 e-mail from Barbara Ertter see Comment 1
Editorial Comments 1 Correspondence 1 indicates, based on Green et al. [2011. Systematic Botany 36(4):1114-1127] as well as communications with Alan Whittemore, that a controversial splitting of Hedera canariensis s.l. into segregate taxa would mean that California plants previously assignable to Hedera canariensis would belong instead to Hedera algeriensis Hibberd.
Editorial Summary and Current Status
Editorial Summary addition, naturalized in CA
Current Status JFP-2, accepted name for taxon naturalized in CA
Current Status Authority Barbara Ertter, as Editor, Jepson Flora Project
Current Status Date 10 Feb 2003
List of names for this Current Status category
List of ICPN names in Hedera
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Hedera

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
Manual imageJepson eFlora
link image ·Consortium of California Herbaria specimen records (includes links to BerkeleyMapper)
· Jepson eFlora page with bioregion map and CCH specimen records
Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
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