EcoFlora - Achnatherum nelsonii subsp. nelsonii

Achnatherum nelsonii subsp. nelsonii (Scribn.) Barkworth
Family: Poaceae Columbia needlegrass, more...Nelson's Needlegrass [Stipa columbiana var. nelsonii (Scribn.) St. John, more]	FNA Resources Mary E. Barkworth. Flora of North America Calluses sharp, acute to acuminate, glabrous tips 0.05-0.15 mm, dorsal boundary of the glabrous tip and the callus hairs acute; awns 19-45 mm. Achnatherum nelsonii subsp. nelsonii intergrades with subsp. dorei in Montana and Wyoming, and with A. occidentale subsp. pubescens in California. Its range extends from Idaho and Montana south to Nevada. It tends to grow at lower elevations than subsp. dorei.
Open Interactive Map University of Florida Herbarium University of Florida Herbarium Click to Display 100 Initial Media - - - - - View All Media