• 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
    • Carabidae Checklists with Keys
    • Mosquito Checklists with Keys
    • Checklist: Research Sites - Invertebrates
    • Checklist: Research Sites - Plants
    • Checklist: Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Sample Archival Request
    • Dataset Publishing
  • How to Cite
  • Additional Information
    • Tutorials and Help
    • Biorepository Staff
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Gymnopogon chapmanianus Hitchc.  

No occurrences found

Family: Poaceae
Chapman's skeletongrass
[Gymnopogon floridanus Swallen]
Gymnopogon chapmanianus image
  • FNA
  • Resources
James P. Smith, Jr.. Flora of North America

Plants usually perennial; cespitose from a knotty base. Culms 20-70 cm, erect to sprawling, simple or sparingly branched from the lower nodes. Sheaths glabrous; ligules 0.1-0.3 mm; blades 1.3-8.5 cm long, 2-8 mm wide, glabrous. Panicles 8-23.5 cm; branches 2-15 cm, ascending, widely spreading, or reflexed, spikelet-bearing from the base or naked for less than 1/3 of their length. Spikelets with (1)2-3(4) florets. Glumes to 6 mm, sometimes widely divergent; lemmas of bisexual florets 1.5-2.3 mm, unawned or awned, awns 0.7-2.2 mm; terminal sterile florets minute, rudimentary, awned, awns not exserted from the spikelets; anthers 3, 0.5-0.8 mm. Caryopses 1.2-1.5 mm long, 0.3-0.4 mm wide. 2n = unknown.

Gymnopogon chapmanianus grows in sandy pine barrens and sites inhabited by dwarf palmetto, Serenoa repens. As interpreted here, G. chapmanianus includes G. floridanus Swallen. Smith (1971) treated the two as distinct species, but he acknowledged that they overlapped morphologically, ecologically, and geographically. Subsequent fieldwork has not supported the recognition of two entities. Smith's most intriguing observation was that only plants fitting the G. floridanus end of the morphological range produced mature caryopses. The reproductive biology of G. chapmanianus merits examination.

Gymnopogon chapmanianus
Open Interactive Map
Click to Display
1 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.