Difference between revisions of "Imperata brevifolia"
FNA>Volume Importer |
RevisionBot (talk | contribs) m (Bot: Adding category Revised Since Print) |
||
| (6 intermediate revisions by 3 users not shown) | |||
| Line 17: | Line 17: | ||
-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. | |distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. | ||
| − | |discussion=<p>Once known from wet or moist sites in the southwestern deserts from southern California, Nevada, and Utah to western Texas, Imperata brevifolia is currently known only from populations in Grand Canyon National Park. It was last collected outside the park in the early 1970s at a site that is now under Lake Powell. Most collections were made before 1945, in sites that are now used for housing or agriculture.</p><!-- | + | |discussion=<p>Once known from wet or moist sites in the southwestern deserts from southern California, <i>Nevada</i>, and Utah to western Texas, <i>Imperata brevifolia</i> is currently known only from populations in Grand Canyon National Park. It was last collected outside the park in the early 1970s at a site that is now under Lake Powell. Most collections were made before 1945, in sites that are now used for housing or agriculture.</p><!-- |
| − | --><p>Imperata brevifolia was listed as a noxious weed by the state of California. The reason for the listing is not clear; it may have stemmed from confusion of this native species with one of the introduced weedy species.</p><!-- | + | --><p><i>Imperata brevifolia</i> was listed as a noxious weed by the state of California. The reason for the listing is not clear; it may have stemmed from confusion of this native species with one of the introduced weedy species.</p><!-- |
| − | --><p>In September 2003, G.F. Hrusa succeeded in persuading the California authorities that Imperata brevifolia should be taken off the state's noxious weed list. Endangered species status is now being sought.</p> | + | --><p>In September 2003, G.F. Hrusa succeeded in persuading the California authorities that <i>Imperata brevifolia</i> should be taken off the state's noxious weed list. Endangered species status is now being sought.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 28: | Line 28: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Imperata brevifolia | name=Imperata brevifolia | ||
| − | |||
|authority=Vasey | |authority=Vasey | ||
|rank=species | |rank=species | ||
| Line 35: | Line 34: | ||
|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |illustrator=Linda A. Vorobik | + | |illustrator=Linda A. Vorobik;Hana Pazdírková |
| + | |illustration copyright=Utah State University | ||
|distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. | |distribution=N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev. | ||
|reference=None | |reference=None | ||
| Line 41: | Line 41: | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1521.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Andropogoneae | |tribe=Poaceae tribe Andropogoneae | ||
| Line 48: | Line 48: | ||
}}<!-- | }}<!-- | ||
| − | -->[[Category:Treatment]][[Category:Imperata]] | + | --> |
| + | |||
| + | [[Category:Treatment]] | ||
| + | [[Category:Imperata]] | ||
| + | [[Category:Revised Since Print]] | ||
Latest revision as of 17:31, 28 May 2021
Culms 51-129 cm. Ligules 0.7-2.9 mm; blades 7-14 mm wide, linear to lanceolate, abaxial surfaces smooth, adaxial surfaces sometimes densely pilose basally, otherwise scabrous. Panicles 16-34 cm, dense; lower branches 2-5 cm, divergent. Callus hairs 8-12 mm; glumes 2.7-4.1 mm; lower lemmas 2.5-3.9 mm, membranous, glumelike; upper lemmas 1.4-2.4 mm, completely surrounding the ovary; stamens 1, filaments dilated at the base; anthers 1.3-2.3 mm, yellow to orange; styles 0.9-2.4 mm; stigmas 2.1-4 mm, purple to brown. 2n = 20.
Distribution
N.Mex., Tex., Utah, Calif., Ariz., Nev.
Discussion
Once known from wet or moist sites in the southwestern deserts from southern California, Nevada, and Utah to western Texas, Imperata brevifolia is currently known only from populations in Grand Canyon National Park. It was last collected outside the park in the early 1970s at a site that is now under Lake Powell. Most collections were made before 1945, in sites that are now used for housing or agriculture.
Imperata brevifolia was listed as a noxious weed by the state of California. The reason for the listing is not clear; it may have stemmed from confusion of this native species with one of the introduced weedy species.
In September 2003, G.F. Hrusa succeeded in persuading the California authorities that Imperata brevifolia should be taken off the state's noxious weed list. Endangered species status is now being sought.
Selected References
None.