Difference between revisions of "Tragus heptaneuron"

Clayton
Common names: Seven-veined burgrass
Treatment appears in FNA Volume 25. Treatment on page 281.
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Tragus heptaneuron
 
name=Tragus heptaneuron
|author=
 
 
|authority=Clayton
 
|authority=Clayton
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
 +
|illustrator=Linda A. Vorobik;Annaliese Miller
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|illustration copyright=Utah State University
 
|distribution=S.C.
 
|distribution=S.C.
 
|reference=None
 
|reference=None
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|publication year=
 
|publication year=
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_925.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_925.xml
 
|subfamily=Poaceae subfam. Chloridoideae
 
|subfamily=Poaceae subfam. Chloridoideae
 
|tribe=Poaceae tribe Cynodonteae
 
|tribe=Poaceae tribe Cynodonteae

Latest revision as of 17:59, 11 May 2021

Plants annual. Culms 15-41cm. Ligules 0.5-1 mm; blades 2.5-7 cm long, 3-5 mm wide, glabrous. Panicles 4-9.5 cm long, 7-9 mm wide; rachises pubescent; branches 0.5-1 mm, pubescent, with 2(3) spikelets, axes not extending past the distal spikelets; proximal internodes 0.5-0.8 mm, longer than the second internodes. Spikelets bisexual; proximal spikelets 3-3.5 mm; second spikelets 2.9-3.3 mm. Lower glumes absent or to 0.4 mm, glabrous; upper glumes 3-3.5 mm, minutely pubescent, 7-veined; glume projections 6-9, in 7 rows, 0.1-0.6(1) mm, uncinate; lemmas (2)2.3-2.7 mm, sparsely pubescent on the back; paleas 2.1-2.3 mm; anthers 3, 0.3-0.6 mm, yellow. Caryopses (1.2)1.4-1.6 mm long, 0.6 mm wide. 2n = unknown.

Discussion

Tragus heptaneuron is native to tropical Africa, but it has been collected in Florence County, South Carolina.

Selected References

None.

Lower Taxa

None.