Log In New Account Sitemap
  • Home
  • Specimen Search
    • Search Collections
    • Map Search
    • Exsiccati Search
  • Images
    • Image Browser
    • Search Images
  • Flora Projects
    • Arizona
    • New Mexico
    • Colorado Plateau
    • Plant Atlas of Arizona (PAPAZ)
    • Sonoran Desert
    • Teaching Checklists
  • Agency Floras
    • NPS - Intermountain
    • USFWS - Region 2
    • BLM Flora
    • Coronado NF
    • Tonto NF
  • Dynamic Floras
    • Dynamic Checklist
    • Dynamic Key
  • Additional Websites
    • New Mexico Flores
    • Plant Atlas Project of Arizona (PAPAZ)
    • Southwest Colorado Wildflowers
    • Vascular Plants of the Gila Wilderness
    • Consortium of Midwest Herbaria
    • Consortium of Southern Rocky Mountain Herbaria
    • Intermountain Region Herbaria Network (IRHN)
    • Mid-Atlantic Herbaria
    • North American Network of Small Herbaria (NANSH)
    • Northern Great Plains Herbaria
    • Red de Herbarios del Noroeste de México (northern Mexico)
    • SERNEC - Southeastern USA
    • Texas Oklahoma Regional Consortium of Herbaria (TORCH)
  • Resources
    • Symbiota Docs
    • Video Tutorials
    • Collections in SEINet
    • Joining a Portal
Pascopyrum
Family: Poaceae
Pascopyrum image
Max Licher
  • FNA
  • Resources
Mary E. Barkworth. Flora of North America
Plants perennial; rhizomatous. Culms 20-100 cm. Leaves basally concentrated; sheaths striate when dry, smooth, usually glabrous, rarely pilose; auricles present; ligules membranous. Inflorescences terminal, distichous spikes, spikelets usually 1 per node, occasionally in pairs at the lower nodes, spikelets at the lower 4-6 nodes often sterile; lowest internodes to 26 mm, 2 times as long as the middle internodes. Spikelets 12-26(30) mm, 1-3 times the length of the internodes, straight, usually ascending, not appressed, with 2-12 florets; disarticulation above the glumes, beneath the florets. Glumes 5-15 mm, 1/2-2/3 the length of the spikelets, usually narrowly lanceolate, stiff, tapering from midlength or below, slightly curving to the side distally, not keeled, 3-5-veined basally, 1-veined distally, apices acuminate; lemmas lanceolate, rounded on the back, acute, mucronate to awned, awns to 5 mm, straight; paleas slightly shorter than the lemmas; anthers 3, 2.5-6 mm. Caryopses 4-5 mm, falling with the lemmas and paleas. 2n = 56. Haplomes St, H, Ns, and Xm. Name from the Latin pascuum, 'pasture', and the Greek pyros, 'wheat'.
Species within checklist: Flora of the Southern Colorado Plateau Network
Pascopyrum smithii
Image of Pascopyrum smithii
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota