Leaf Level Invasive Knotweed Spectral Data with Morphology

Data and Resources

• Knotweed_Spec_Morphology_Data_ecosis.csvCSV
• KnotweedDataset_VariablesDefined.csvCSV

• invasive species
• knotweed
• leaf reflectance
• minnesota
• polygonaceae
• reynoutria
• wisconsin

Additional Info

Field	Value
Author	Addison Gench, Alex Crum, Aaron Lee, Ya Yang, Brett Fredericksen
Maintainer	Brett Fredericksen
Version	1
Last Updated	June 23, 2026, 23:00 (UTC)
Created	June 17, 2026, 21:44 (UTC)
Acquisition Method	Contact
Citation	Addison Gench, Alex Crum, Aaron Lee, Ya Yang and Brett Fredericksen. Leaf Level Invasive Knotweed Spectral Data with Morphology. Data set. Available on-line [http://ecosis.org] from the Ecological Spectral Information System (EcoSIS)
Ecosystem Type	Forest, Grassland
Foreoptic Type	Leaf Clip
Funding Source	NSF
Funding Source Grant Number	DBI #2021898
Instrument Manufacturer	Spectral Evolution
Instrument Model	PSR+ 3500
Light Source	Lamp
Location Name	Minnesota and Wisconsin
Measurement Quantity	Reflectance
Measurement Units	%
Measurement Venue	Laboratory
NASA GCMD Keywords	[{"label":"earth science > climate indicators > biospheric indicators > invasive species","value":"93c8b32d-ab89-43e1-b58c-f1823fa7d118"},{"label":"earth science > biosphere > vegetation","value":"c7b5c02c-724d-4a19-b824-98180f3900c9"},{"label":"earth science > land surface > landscape > landscape management","value":"36a4ac5a-1082-4922-9bca-934c06e54cda"}]
Processing Averaged	Yes
Processing Information Details	Spectra processed internally in machine, vector normalized, and jump corrected
Processing Interpolated	Yes
Processing Resampled	Yes
Target Status	Fresh, Green
Target Type	Leaf
Theme	Forest, Ecology
Wavelength Units	nm
geojson	{"type":"Polygon","coordinates":[[[-90.55206298828125,46.971702200657525],[-90.55206298828125,44.50323941130474],[-93.67218017578125,44.50323941130474],[-93.67218017578125,46.971702200657525],[-90.55206298828125,46.971702200657525]]]}
resourceUpdateCount	8