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Gymnopogon chapmanianus

Gymnopogon chapmanianus Hitchc.  
Family: Poaceae
Chapman's Skeleton Grass, more...Chapman's Skeletongrass
Gymnopogon chapmanianus image
University of Florida Herbarium
  • 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
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Genevieve J Kline
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Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
Gymnopogon chapmanianus image
Gymnopogon chapmanianus image
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
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Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
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Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
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Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
Gymnopogon chapmanianus image
University of Florida Herbarium
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