Difference between revisions of "Isocoma acradenia var. bracteosa"
Phytologia 70: 81. 1991.
Basionym: Isocoma bracteosa Greene Leafl. Bot. Observ. Crit. 1: 170. 1906
Synonyms: Haplopappus acradenius subsp. bracteosus (Greene) H. M. Hall
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| Line 10: | Line 10: | ||
|name=Isocoma bracteosa | |name=Isocoma bracteosa | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=species | ||
|publication_title=Leafl. Bot. Observ. Crit. | |publication_title=Leafl. Bot. Observ. Crit. | ||
|publication_place=1: 170. 1906 | |publication_place=1: 170. 1906 | ||
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|name=Haplopappus acradenius subsp. bracteosus | |name=Haplopappus acradenius subsp. bracteosus | ||
|authority=(Greene) H. M. Hall | |authority=(Greene) H. M. Hall | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Isocoma;Isocoma acradenia;Isocoma acradenia var. bracteosa | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Isocoma;Isocoma acradenia;Isocoma acradenia var. bracteosa | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Isocoma acradenia var. bracteosa | name=Isocoma acradenia var. bracteosa | ||
| − | |||
|authority=(Greene) G. L. Nesom | |authority=(Greene) G. L. Nesom | ||
|rank=variety | |rank=variety | ||
| Line 55: | Line 56: | ||
|publication year=1991 | |publication year=1991 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_1008.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Isocoma | |genus=Isocoma | ||
Revision as of 20:23, 16 December 2019
Leaf blades mostly 50–150 mm, margins of proximal usually shallowly toothed, of distal entire or serrulate. Involucres 7–8 mm. Phyllary apices spinulose-aristate. Florets 20–27. 2n = 12.
Phenology: Flowering Aug–Oct.
Habitat: Salt flats
Elevation: 0–20 m
Discussion
In the limited zone of contact between vars. bracteosa and acradenia, intermediates are rare. The two differ in chromosome number and significantly in habitat (altitudes are essentially non-overlapping). Field studies may show them to warrant distinction at specific rank.
Selected References
None.
Lower Taxa
None.