Difference between revisions of "Eriochloa michauxii"

(Poir.) Hitchc.
Common names: Longleaf cupgrass
Endemic
Treatment appears in FNA Volume 25. Treatment on page 509.
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|publications=
 
|publications=
 
|common_names=Longleaf cupgrass
 
|common_names=Longleaf cupgrass
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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=
 
|basionyms=
 
|synonyms=
 
|synonyms=
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-->{{Treatment/Body
 
-->{{Treatment/Body
 
|distribution=S.C.;Fla.;Ala.;Ga.
 
|distribution=S.C.;Fla.;Ala.;Ga.
|discussion=<p>Eriochloa michauxii is endemic to the southeastern United States. There are two varieties, differing as shown in the following key. Intermediate plants have been collected in Lee and Monroe counties, Florida.</p>
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|discussion=<p><i>Eriochloa michauxii</i> is endemic to the southeastern United States. There are two varieties, differing as shown in the following key. Intermediate plants have been collected in Lee and Monroe counties, Florida.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Eriochloa michauxii
 
name=Eriochloa michauxii
|author=
 
 
|authority=(Poir.) Hitchc.
 
|authority=(Poir.) Hitchc.
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
|illustrator=Linda A. Vorobik and Cindy Roché
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|illustrator=Linda A. Vorobik;Cindy Roché
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|illustration copyright=Utah State University
 
|distribution=S.C.;Fla.;Ala.;Ga.
 
|distribution=S.C.;Fla.;Ala.;Ga.
 
|reference=None
 
|reference=None
 
|publication title=
 
|publication title=
 
|publication year=
 
|publication year=
|special status=
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|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_1337.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1337.xml
 
|subfamily=Poaceae subfam. Panicoideae
 
|subfamily=Poaceae subfam. Panicoideae
 
|tribe=Poaceae tribe Paniceae
 
|tribe=Poaceae tribe Paniceae

Latest revision as of 18:56, 11 May 2021

Plants perennial; cespitose and rhizomatous. Culms 50-250 cm, erect, not rooting at the lower nodes; internodes glabrous; nodes 3-7, puberulent to appressed pilose, rarely glabrous. Sheaths glabrous; collars hairy; ligules 0.5-1.5 mm; blades 10-60 cm long, 5-15 mm wide, linear, flat to conduplicate, straight or lax, spreading, glabrous adaxially. Panicles 10-30 cm long, 2.5-10 cm wide, open or contracted; rachises villous or puberulent; branches 10-25, 15-60 mm long, 0.5-0.8 mm wide, appressed to spreading, villous to shortly pilose, rarely puberulent or scabrous, not winged, with 16-40 spikelets on the primary branches, spikelets in unequally pedicellate pairs or triplets proximally, solitary distally; pedicels 0.3-2.5 mm, variously hirsute below, with fewer than 10 hairs more than 0.5 mm long at the apices. Spikelets 3.7-5.7 mm long, 1.3-1.8 mm wide, ovate to elliptic. Upper glumes equaling the lower lemmas, ovate, hairy, 5-veined, acute, unawned, rarely mucronate; lower lemmas 3.5-5 mm long, 1.3-1.8 mm wide, ovate to elliptic, setose, 5(7)-veined, acute, unawned; lower paleas fully developed, as long as or longer than the lemmas, hyaline; anthers 3 or absent; upper lemmas 3.1-4.6 mm, indurate, elliptic, 5-veined, acute to rounded, mucronate or awned, awns 0.1-0.6 mm; upper paleas 3-4.3 mm, indurate, blunt. 2n = 36.

Discussion

Eriochloa michauxii is endemic to the southeastern United States. There are two varieties, differing as shown in the following key. Intermediate plants have been collected in Lee and Monroe counties, Florida.

Selected References

None.