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- Threatened, Endangered and Candidate Plant Species of Utah
- Southwestern Rare and Endangered Plants: Proceedings of the Fourth Conference
- Chloridoideae Paul M
- Native Plant Revegetation Guide for Colorado
- New Mexico Grass Types and a Selected Bibliography of New Mexico Grass Taxonomy Kelly W
- Nebraska Sand Hills: the Last Prairie
- 2017 Sandsage Prairie Biologically Unique Landscape Rare Plant Survey
- The Flora and Sandhills Prairie Communities of Arapaho Prairie, Arthur County, Nebraska
- Chenopodium Cycloides A. Nelson (Sandhill Goosefoot): a Technical Conservation Assessment
- Welsh's Milkweed Asclepias Welshii N. H. Holmgren & P. K. Holmgren
- The Sharp-Tailed Grouse in Nebraska
- Survey of Penstemon Haydenii (Blowout Penstemon) in Wyoming 2004
- The Families and Genera of Vascular Plants of the Conterminous United States
- Penstemon Haydenii)
- Jim Bridger Coal Mine Complex Mining Plan Modification for Federal Coal Lease WYW-02727
- Plant Guide for Welsh's Milkweed (Asclepias Welshii)
- An Annotated Checklist of the Vascular Plants of Oklahoma
- WELSH's MILKWEED (Asclepias Welshii) STATUS: Threatened with Critical Habitat (52 FR 41435, October 28, 1987). SPECIES DESCR
- Preliminary Index of Utah Vascular Plant Names
- Poaceae) Optimized on a Molecular Phylogeny ⁎ Q
- Development of a Grazing Monitoring Program for Great Sand Dunes National Park, Colorado
- Aliso 23, Pp. 580-594 © 2007, Rancho Santa Ana Botanic Garden
- SRM Plant ID Master List
- Blowout Penstemon
- Classification, Phylogeny, and a New Species, M
- Poaceae : Chloridoideae)
- Phylogenetics of Chloridoideae (Gramineae): a Preliminary Study Based on Nuclear Ribosomal Internal Transcribed Spacer and Chloroplast Trnl–F Sequences J
- Nomenclatural Changes for Some Grasses in California and the Muhlenbergia Clade (Poaceae) J
- Agrostology; an Introduction to the Systematics of Grasses James P
- Cassin's Sparrow Nesting in Wyoming
- Conservation Strategy for Washington State Inland Sand Dunes