• NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Home
  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Datasets
    • Research Datasets and Special Collections
    • Checklist: Research Sites - Invertebrates
    • Checklist: Research Sites - Plants
    • Checklist: Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Sample Archival Request
    • Data Usage Policy
  • Additional Information
    • Tutorials and Help
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Carex arkansana (L.H.Bailey) L.H.Bailey  

No occurrences found

Family: Cyperaceae
Arkansas sedge
Images
not available
  • FNA
  • Resources
Peter W. Ball & A. A. Reznicek in Flora of North America (vol. 23)
Plants without conspicuous rhizomes. Culms 15-60 cm, 1.4-2 mm wide basally, 0.7-0.9 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules to 1.5 mm, wider than long; widest leaf blades 1-2.5 mm wide. Inflorescences with 3-6 spikes, 1.5-4 cm × 7-12 mm; proximal internodes 1-1.5 times as long as proximal spikes; proximal bracts 6-25 cm, at least 2 times as long as inflorescences; spikes with 8-20 spreading perigynia. Pistillate scales hyaline with green, 3-veined center, ovate, 2-3.5 × 1.2-2.4 mm, body 2/3 to almost length of perigynium, distinctly narrower, apex acuminate to awned. Anthers 1.3-1.8 mm. Perigynia pale green, veinless or indistinctly veined abaxially, 3.3-4 × 2.3-3 mm, base of body somewhat spongy, thickened, margins serrulate distally; beak 0.8-1.2 mm, apical teeth 0.3-0.7 mm. Achenes suborbiculate, 1.5-2 × 1.5-1.8 mm. Fruiting late spring. Moist prairies, forest openings, roadside ditches; 100-500 m; Ark., Ill., Kans., Mo., Okla., Tex.
Click to Display
0 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.