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Abstract Detail

Systematics Section/ASPT

Charboneau, Joseph [1], Nelson, B. E. [1], Hartman, Ronald [1].

Floristic Inventory of Phillips and Valley Counties, Montana.

The flora of the northwestern Great Plains in northeastern Montana is poorly known. In the growing seasons of 2010and 2011, we conducted an extensive floristic inventory of Phillips and Valley Counties, together encompassing over 8,900 sq. mi. This project is part of a greater effort by students and staff at the Rocky Mountain Herbarium (RM) at the University of Wyoming to fully document the flora of the Rocky Mountains and surrounding plains and basins in the U.S. We collected 12,814 voucher specimens of vascular plants in habitats ranging from rolling mixedgrass prairie to big sagebrush steppe, in wetlands, wooded coulees, badlands, ponderosa pine woodlands in the Missouri River Breaks, and in montane mixed conifer forests in the Little Rocky Mountains, a small island range. Collections were made on public lands in the Malta and Glasgow BLM field districts, Charles M. Russell National Wildlife Refuge, Lake Bowdoin National Wildlife Refuge, the Matador Ranch (The Nature Conservancy), and the American Prairie Reserve. We identified 756 unique taxa, 712 species,and 358 genera within 86 vascular plant families. Approximately 32% of the taxa identified were newly documented in the study area. We assessed the adequacy of our sampling through an analysis of combinations of environmental conditions found within the study area and through species accumulation curves.

Broader Impacts:

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1 - University of Wyoming, Department of Botany, 3165, 1000 E. University Ave., Laramie, WY, 82071, USA

Great Plains.

Presentation Type: Oral Paper:Papers for Sections
Session: 47
Location: Union C/Hyatt
Date: Wednesday, July 11th, 2012
Time: 9:30 AM
Number: 47003
Abstract ID:1009

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