Difference between revisions of "Calamagrostis ophitidis"

(J.T. Howell) Nygren
Common names: Serpentine reedgrass
Endemic
Synonyms: Calamagrostis purpurascens var. ophitidis
Treatment appears in FNA Volume 24. Treatment on page 712.
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|publications=
 
|publications=
 
|common_names=Serpentine reedgrass
 
|common_names=Serpentine reedgrass
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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={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Calamagrostis purpurascens var. ophitidis
 
|name=Calamagrostis purpurascens var. ophitidis
|authority=unknown
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|authority=
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|rank=variety
 
}}
 
}}
 
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Calamagrostis;Calamagrostis ophitidis
 
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Calamagrostis;Calamagrostis ophitidis
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|distribution=Calif.
 
|distribution=Calif.
|discussion=<p>Calamagrostis ophitidis grows in meadows, seeps, grasslands, and chaparral, as well as in coniferous forests, on serpentine outcrops and soils, at 50-1100 m. It is known only from Sonoma, Marin, Mendocino, Lake, and Napa counties in California.</p>
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|discussion=<p><i>Calamagrostis ophitidis</i> grows in meadows, seeps, grasslands, and chaparral, as well as in coniferous forests, on serpentine outcrops and soils, at 50-1100 m. It is known only from Sonoma, Marin, Mendocino, Lake, and Napa counties in California.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Calamagrostis ophitidis
 
name=Calamagrostis ophitidis
|author=
 
 
|authority=(J.T. Howell) Nygren
 
|authority=(J.T. Howell) Nygren
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
|illustrator=Cindy Roché and Hana Pazdírková
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|illustrator=Cindy Roché;Hana Pazdírková
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|illustration copyright=Utah State University
 
|distribution=Calif.
 
|distribution=Calif.
 
|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/V24/V24_1005.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_1005.xml
 
|subfamily=Poaceae subfam. Pooideae
 
|subfamily=Poaceae subfam. Pooideae
 
|tribe=Poaceae tribe Poeae
 
|tribe=Poaceae tribe Poeae

Latest revision as of 16:21, 11 May 2021

Plants usually with sterile culms; usually cespitose, often with rhizomes 2-15 cm long, 1-3 mm thick. Culms (30) 55-80(100) cm, unbranched, scabrous beneath the panicles; nodes (1)2(5). Sheaths and collars usually scabrous, rarely smooth; ligules (0.5)2-5.5(7) mm, usually truncate, entire to slightly lacerate; blades (8)10-20(27) cm long, (1.5)2-3(4) mm wide, usually involute, abaxial surfaces usually scabrous, rarely smooth, adaxial surfaces scabrous, glabrous or sparsely hairy, both surfaces with abundant white glands between the veins, visible only with magnification. Panicles (6)8-11(15) cm long, (1)1.2-1.5 cm wide, contracted, mostly erect, pale green to green; branches 2-4(4.5) cm, scabridulous, usually spikelet-bearing to the base. Spikelets (4.5)5-7(8) mm; rachilla prolongations about 1.5 mm, hairs 1-2 mm. Glumes keeled, usually scabrous over the entire surface, rarely only the keels scabrous distally, lateral veins prominent, apices acute to acuminate; callus hairs 1-1.5(2) mm, 0.2-0.4 times as long as the lemmas, sparse; lemmas 4.5-6.5 mm, 0-2 mm shorter than the glumes; awns 5-6(8) mm, attached to the lower 1/10 – 1/5 of the lemmas, exserted less than 2 mm, stout, distinguishable from the callus hairs, bent; anthers (2.5)3-3.5(4) mm. 2n = 28.

Discussion

Calamagrostis ophitidis grows in meadows, seeps, grasslands, and chaparral, as well as in coniferous forests, on serpentine outcrops and soils, at 50-1100 m. It is known only from Sonoma, Marin, Mendocino, Lake, and Napa counties in California.

Selected References

None.

Lower Taxa

None.