Jepson Flora Project: Jepson Interchange for California Floristics    
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Xanthium spinosum L.
ASTERACEAE
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Information from the Index of California Plant Names (ICPN)
Initial Editorial Analysis 22 Feb 2011
Source of Report for California The Jepson Manual [Ed. 1]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 4 Sep 2007 e-mail from Staci Markos, including forwarded e-mail from G. F. Hrusa, Mark Vande Pol, and Dave Keil dating back to 28 Aug 2007 see Comment 1
Editorial Comments 1 Correspondence 1 is a discussion suggesting that Xanthium spinosum L., reported by Mark Vande Pol as not behaving like a native and as by far the most noxious weed on his 14-acre property in Santa Cruz Co., might not be native to California and that its status might have to be changed to naturalized in California (Jepson Flora Project-2).
Correspondence 2 Treatment and author notes submitted for The Jepson Manual [Ed. 2] see Comment 2
Editorial Comments 2 Correspondence 2 indicates that for The Jepson Manual [Ed. 2] Xanthium spinosum L. is to be labelled "native or naturalized".
Editorial Summary and Current Status
Current Status JFP-1, accepted name for taxon native to CA
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 22 Feb 2011
List of names for this Current Status category
List of ICPN names in Xanthium
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Xanthium

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
Manual imageJepson eFlora
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Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
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