Specimen Information

Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic

Specimen ID1438330
GroupPlants
GenusAlternanthera
Speciesphiloxeroides
Common Namealligatorweed
StateCA
CountyLos Angeles
LocalityBrea Canyon Freeway project, stockpiled sand from Whittier Narrows. Detection report only, no confirming specimen.
Mapping AccuracyAccurate
HUC8 NameSan Gabriel
HUC8 Number18070106
HUC10 NameSan Jose Creek
HUC10 Number1807010605
HUC12 NameUpper San Jose Creek
HUC12 Number180701060501
Map
+
Collection Day3
Collection Month9
Collection Year1970
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
Statusestablished
Reference 1
Ref. Number:25610
Author:Calflora
Date:2021
Title:The Calflora Database: Information on California plants for education, research and conservation
CommentsCalflora observation ID: xr174487
Record TypeLiterature
Freshwater/MarineFreshwater


Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/8/2023].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.