Alternanthera philoxeroides
Alternanthera philoxeroides
(alligatorweed)
Plants
Exotic
Collection Info
Point Map
Species Profile
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Impacts

30 results for Alternanthera philoxeroides (alligatorweed)
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Page:12
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1725678 CALos Angeles0.2 mile north of flood gates of Whittier Narrows Dam, west of Rosemead Blvd. south of San Gabriel Blvd. east bank of the Rio Hondo, just east of Montebello.1965 18070105 Los Angeles 
1438068 CALos AngelesArtesia Freeway and Long Beach Freeway N of Long Beach. Detection report only, no confirming specimen.1971 18070105 Los Angelesestablished
1438231 CALos AngelesArtesia Freeway and Long Beach Freeway N of Long Beach. Detection report only, no confirming specimen.1971 18070105 Los Angelesestablished
1438314 CALos AngelesArtesia Freeway and Long Beach Freeway N of Long Beach. Detection report only, no confirming specimen.1971 18070105 Los Angelesestablished
247657 CALos AngelesBell Gardens1960 18070105 Los Angelescollected
1438418 CALos AngelesE bank of Rio Hondo at San Gabriel Blvd.1956 18070105 Los Angelesestablished
1438417 CALos AngelesE of Montebello, N of Whittier Narrows Dam on E bank of Rio Hondo.1965 18070105 Los Angelesestablished
1725590 CALos AngelesEast bank of the Rio Hondo River at San Gabriel Blvd. Montebello, CA1973 18070105 Los Angeles 
1725591 CALos AngelesEast bank of the Rio Hondo River at San Gabriel Blvd. Montebello, CA1973 18070105 Los Angeles 
247665 CALos AngelesEast Los Angeles; Cummings St & Zonal Ave1970 18070105 Los Angelescollected
1438194 CALos AngelesLA County Hospital at Commings & Zonal Ave. Detection report only, no confirming specimen.1970 18070105 Los Angelesestablished
1438331 CALos AngelesLA County Hospital at Commings & Zonal Ave. Detection report only, no confirming specimen.1970 18070105 Los Angelesestablished
1438377 CALos AngelesLA County Hospital at Commings & Zonal Ave. Detection report only, no confirming specimen.1970 18070105 Los Angelesestablished
1438413 CALos AngelesLA County Hospital at Commings & Zonal Ave. Detection report only, no confirming specimen.1970 18070105 Los Angelesestablished
1438383 CALos AngelesLos Angeles Basin region; San Gabriel Valley, Rio Hondo at San Gabriel Boulevard1946 18070105 Los Angelesestablished
247669 CALos AngelesNorth Long Beach; Artesia & Long Beach Fwys1971 18070105 Los Angelescollected
233994 CALos AngelesRio Hondo1946 18070105 Los Angelescollected
1725672 CALos AngelesRio Hondo River under bridge on San Gabriel Blvd. near intersection with Rosemead Blvd. El Monte.1956 18070105 Los Angeles 
1725680 CALos AngelesRio Hondo Settling Basin.1975 18070105 Los Angeles 
1725578 CALos AngelesRio Hondo, under bridge on San Gabriel Blvd. near Rosemead Blvd.1956 18070105 Los Angeles 
247654 CALos AngelesRio Hondo, under San Gabriel Blvd bridge1956 18070105 Los Angelesestablished
1438336 CALos AngelesRio Hondo, under San Gabriel Blvd bridge near Rosemead Blvd intersection.1956 18070105 Los Angelesestablished
247655 CALos AngelesRosemead1960 18070105 Los Angelesestablished
1438335 CALos AngelesSan Gabriel River watershed: Whittier Narrows.1965 18070105 Los Angelesestablished
1438198 CALos AngelesSan Gabriel Valley, Rio Hondo River, in the Whittier Narrows1965 18070105 Los Angelesestablished
Page:12

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/20/2024].

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