Difference between revisions of "Isocoma azteca"
Phytologia 70: 84. 1991.
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|elevation=1500–1800 m | |elevation=1500–1800 m | ||
|distribution=Ariz.;N.Mex. | |distribution=Ariz.;N.Mex. | ||
| − | |discussion=<p>Isocoma azteca is similar to I. rusbyi in most features and perhaps most closely related to it; the pinnate leaves of I. azteca are distinctive. The two taxa are essentially contiguous in range along the New Mexico-Arizona border and their interaction in natural populations needs to be studied.</p> | + | |discussion=<p><i>Isocoma azteca</i> is similar to <i>I. rusbyi</i> in most features and perhaps most closely related to it; the pinnate leaves of <i>I. azteca</i> are distinctive. The two taxa are essentially contiguous in range along the New Mexico-Arizona border and their interaction in natural populations needs to be studied.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Isocoma azteca | name=Isocoma azteca | ||
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|authority=G. L. Nesom | |authority=G. L. Nesom | ||
|rank=species | |rank=species | ||
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|publication year=1991 | |publication year=1991 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1018.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Isocoma | |genus=Isocoma | ||
Latest revision as of 19:58, 5 November 2020
Herbage glabrous, sometimes sparsely stipitate-glandular, not resinous. Leaf blades narrowly oblong to narrowly oblanceolate, 20–50 mm, margins shallowly to deeply pinnatifid (lobes in 3–8 evenly arranged pairs, apically aristate). Involucres 7–8 × 5–7.5 mm. Phyllary apices green to greenish yellow, not aristate, sparsely to prominently gland-dotted, without resin pockets. Florets 18–25; corollas 5–6 mm. Cypsela ribs not forming apical hornlike extensions.
Phenology: Flowering Jul–Sep.
Habitat: Slopes, river edges, sandy to clay soils, gypseous or saline, badlands in pinyon-juniper woodlands, commonly with Atriplex
Elevation: 1500–1800 m
Discussion
Isocoma azteca is similar to I. rusbyi in most features and perhaps most closely related to it; the pinnate leaves of I. azteca are distinctive. The two taxa are essentially contiguous in range along the New Mexico-Arizona border and their interaction in natural populations needs to be studied.
Selected References
None.