Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Solanales
WEAKLEY'S FLORA (5/21/15):
Cuscuta japonica
FAMILY
Convolvulaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cuscuta japonica
FAMILY
Cuscutaceae
SYNONYMOUS WITH Monogynella japonica
COMMON NAME:
Japanese Dodder
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USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org bug_1149108
Month Unknown
Look for it on Kudzu & possibly other nonnative woody plants, like Privet, per Key to the Dodders (Cuscuta, Convolvulaceae) of Alabama and Adjacent States (Spaulding, 2013).
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USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org bug_1149111
Month Unknown
Apparently eradicated in Pickens County, SC, per Weakley's Flora.
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Victor Cordova, City of Houston, Urban Forestry Division, Bugwood.org bug_2121072
Month Unknown
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Barry Rice, sarracenia.com, Bugwood.org bug_5341069
Month Unknown
All Cuscuta species are leafless, annual parasitic herbs, per Key to the Dodders (Cuscuta, Convolvulaceae) of Alabama and Adjacent States (Spaulding, 2013).
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Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org bug_5376412
Month Unknown