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DOCUMENTATION_FORMAT: PLANT
SAMPLE_ID: ANPC1
PLANT_TYPE: Annual grass, invasive
PLANT: Cheatgrass
LATIN_NAME: Bromus tectorum
COLLECTION_LOCALITY: Yellow Cat Flats, 5 km E of Arches National Park, Utah, USA
ORIGINAL_DONOR: Gregg Swayze and Roger Clark
SAMPLE_DESCRIPTION:
Mature brown cheat grass collected from large field in early June, 1995
END_SAMPLE_DESCRIPTION.
COMPOSITIONAL_ANALYSIS_TYPE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
TRACE_ELEMENT_ANALYSIS:
TRACE_ELEMENT_DISCUSSION:
END_TRACE_ELEMENT_DISCUSSION.
SPECTROSCOPIC_DISCUSSION:
Spectrum typical of dried grass with monotonically increasing spectral reflectance from UV to 1.5 microns. Absorptions characteristic of water at 1.4 and presumably 1.9 microns. Portions of the spectrum have been removed because they were noisy due to atmospheric absorptions. This spectrum was collected in the field. Absorptions at 2.01 and 2.32 microns are characteristic of cellulose, lignin and other organic compounds.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns