Difference between revisions of "Festuca sororia"

Piper
Common names: Ravine fescue
Treatment appears in FNA Volume 24. Treatment on page 404.
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|distribution=Colo.;N.Mex.;Utah;Calif.;Ariz.;Mo.
 
|distribution=Colo.;N.Mex.;Utah;Calif.;Ariz.;Mo.
|discussion=<p>Festuca sororia grows in open woods and on shaded slopes and stream banks, at 2000-3000 m. It is re¬stricted to the United States, growing from central Utah and Colorado to Arizona and New Mexico. A single puzzling specimen is the basis for the reported occurrence of this species in Missouri (Yatskievych 1999).</p>
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|discussion=<p><i>Festuca sororia</i> grows in open woods and on shaded slopes and stream banks, at 2000-3000 m. It is re¬stricted to the United States, growing from central Utah and Colorado to Arizona and New Mexico. A single puzzling specimen is the basis for the reported occurrence of this species in Missouri (Yatskievych 1999).</p>
 
|tables=
 
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|references=
 
|references=
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name=Festuca sororia
 
name=Festuca sororia
|author=
 
 
|authority=Piper
 
|authority=Piper
 
|rank=species
 
|rank=species
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|family=Poaceae
 
|family=Poaceae
 
|illustrator=Cindy Roché
 
|illustrator=Cindy Roché
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|illustration copyright=Utah State University
 
|distribution=Colo.;N.Mex.;Utah;Calif.;Ariz.;Mo.
 
|distribution=Colo.;N.Mex.;Utah;Calif.;Ariz.;Mo.
 
|reference=None
 
|reference=None
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|publication year=
 
|publication year=
 
|special status=
 
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V24/V24_565.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V24/V24_565.xml
 
|subfamily=Poaceae subfam. Pooideae
 
|subfamily=Poaceae subfam. Pooideae
 
|tribe=Poaceae tribe Poeae
 
|tribe=Poaceae tribe Poeae

Revision as of 20:22, 16 December 2019

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

Copyright: Utah State University

Plants loosely cespitose, without rhizomes, with short extra-vaginal tillers. Culms 60-100 (150) cm, erect, glabrous; nodes usually exposed. Sheaths closed for less than 1/3 their length, glabrous or scabrous, shredding into fibers; ligules 0.3-1.5 mm; blades 3-6(10) mm wide, flat, lax, margins scabrous, abaxial and adaxial surfaces glabrous, adaxial surfaces sometimes scabrous, veins 13-25, ribs obscure; abaxial sclerenchyma in narrow strands; adaxial sclerenchyma developed; girders or pillars formed at the major veins. Inflorescences 10-20(40) cm, open or somewhat contracted, with 1-2(3) branches per node; branches lax, more or less spreading, spikelets borne towards the ends of the branches. Spikelets 7-12 mm, with (2)3-5 florets. Glumes lanceolate, scabrous at least on the midvein, acute to acuminate; lower glumes (1.5) 2.5-4(4.5) mm; upper glumes (3)4-6.5 mm; calluses wider than long, glabrous, smooth or slightly scabrous; lemmas (5)6-8(9) mm, lanceolate, scabrous or puberulent, acuminate, unawned or awned, awns to 2 mm; paleas about as long as or shorter than the lemmas, intercostal region puberulent distally; anthers 1.6-2.5 mm; ovary apices pubescent. 2n = unknown.

Distribution

Colo., N.Mex., Utah, Calif., Ariz., Mo.

Discussion

Festuca sororia grows in open woods and on shaded slopes and stream banks, at 2000-3000 m. It is re¬stricted to the United States, growing from central Utah and Colorado to Arizona and New Mexico. A single puzzling specimen is the basis for the reported occurrence of this species in Missouri (Yatskievych 1999).

Selected References

None.

Lower Taxa

None.