Difference between revisions of "Piptochaetium avenacioides"

(Nash) Valencia &
Common names: Florida speargrass
Endemic
Treatment appears in FNA Volume 24.
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|common_names=Florida speargrass
 
|common_names=Florida speargrass
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}
 
|basionyms=
 
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|distribution=Fla.
 
|distribution=Fla.
|discussion=<p>Piptochaetium avenacioides grows in dry woods, generally on sandy ridges. It is endemic to Florida, growing primarily in the central peninsula. Morph-ologically, it is very similar to P. avenaceum, differing only in its larger size and more restricted distribution.</p>
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|discussion=<p><i>Piptochaetium avenacioides</i> grows in dry woods, generally on sandy ridges. It is endemic to Florida, growing primarily in the central peninsula. Morph-ologically, it is very similar to <i>P. avenaceum</i>, differing only in its larger size and more restricted distribution.</p>
 
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name=Piptochaetium avenacioides
 
name=Piptochaetium avenacioides
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|authority=(Nash) Valencia &
 
|authority=(Nash) Valencia &
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
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|illustrator=Cindy Roché
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|illustration copyright=Utah State University
 
|distribution=Fla.
 
|distribution=Fla.
 
|reference=None
 
|reference=None
 
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|publication title=
 
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|publication year=
|special status=
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V24/V24_226.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_226.xml
 
|subfamily=Poaceae subfam. Pooideae
 
|subfamily=Poaceae subfam. Pooideae
 
|tribe=Poaceae tribe Stipeae
 
|tribe=Poaceae tribe Stipeae

Latest revision as of 17:22, 11 May 2021

Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Culms 70-130 cm, mostly glabrous, sometimes pubescent below the nodes; nodes yellowish, glabrous. Sheaths glabrous; ligules blunt to acute, of basal leaves 0.4-0.7 mm, of upper leaves to 3 mm; blades 15-30 cm long, 0.8-1.5 mm wide, usually involute and 0.5 mm in diameter, 3-veined, abaxial surfaces usually glabrous and smooth, sometimes scabrous, adaxial surfaces usually scabrous over the veins, sometimes smooth, sometimes hairy. Panicles 10-31 cm, open, with 10-50 spikelets; pedicels 15-20 mm, scabrous. Glumes 15-22 mm, (3)5-veined; florets 13.5-22 mm long, 1-2 mm thick, terete; calluses 3.5-8 mm, sharp, strigose, hairs golden brown at maturity; lemmas glabrous, tan to brown at maturity, mostly smooth, sharply tuberculate distally, contracted below the crown; crowns 0.6-0.7 mm wide, hairy, hairs 0.2-0.6 mm; awns 62-120 mm, persistent, twice-geniculate; paleas 9-12 mm; lodicules 2; anthers 4-7 mm. 2n = unknown.

Distribution

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Fla.

Discussion

Piptochaetium avenacioides grows in dry woods, generally on sandy ridges. It is endemic to Florida, growing primarily in the central peninsula. Morph-ologically, it is very similar to P. avenaceum, differing only in its larger size and more restricted distribution.

Selected References

None.

Lower Taxa

None.