Arizona State University Vascular Plant Herbarium
Catalog #: ASU0018258
Occurrence ID (GUID): ca840f57-56a8-4882-835a-2200bd2716db
Secondary Catalog #: 181990
Taxon: Gutierrezia microcephala (DC.) Gray
Family: Asteraceae
Collector: Mittleman   556-a   
Date: 1984-11-07
Additional Collectors: Valdez
Locality: Mexico, Durango, 14 km W of Nazas on road to Penon Blanco.
25.216601  -104.239609 +-12805m.
Habitat: Aggressive weed where grazed and disturbed lands are evident.
Associated Species: Larrea, Prosopis, Parthenium incanum
Description: Threadleaf Snakeweed. Plants are poisonous to livestock.
Specimen Images
Record ID: ca840f57-56a8-4882-835a-2200bd2716db
For additional information on this specimen, please contact: Elizabeth Makings (
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