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Volume 73, Number 1 (2013)

Front Matter

Articles

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Studies of a new hybrid taxon in the Artemisia tridentata (ASTERACEAE: Anthemideae) complex
Heather D. Garrison, Leila M. Shultz, and E. Durant McArthur

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Nongame fish species distribution and habitat associations in the Snake River basin of southern Idaho
Kevin A. Meyer, James A. Lamansky Jr., Daniel J. Schill, and Donald W. Zaroban

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Medusahead invasion along unimproved roads, animal trails, and random transects
Kirk W. Davies, Aleta M. Nafus, and Matthew D. Madsen

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Seasonal variation in offspring sex ratio in the Snowy Plover
Sarah T. Saalfeld, Warren C. Conway, David A. Haukos, and William P. Johnson

Notes

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New plant taxa from Colorado, New Mexico and Arizona
N. Duane Atwood and Stanley L. Welsh

Book Review

Obituary

Announcement

End Matter