Difference between revisions of "Stephanomeria exigua subsp. exigua"
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Stephanomeria exigua subsp. exigua | |accepted_name=Stephanomeria exigua subsp. exigua | ||
| − | |accepted_authority= | + | |accepted_authority= |
|publications= | |publications= | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Stephanomeria pentachaeta | |name=Stephanomeria pentachaeta | ||
|authority=D. C. Eaton | |authority=D. C. Eaton | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Stephanomeria exigua var. pentachaeta | |name=Stephanomeria exigua var. pentachaeta | ||
|authority=(D. C. Eaton) H. M. Hall | |authority=(D. C. Eaton) H. M. Hall | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Stephanomeria schottii | |name=Stephanomeria schottii | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Stephanomeria;Stephanomeria exigua;Stephanomeria exigua subsp. exigua | |hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Stephanomeria;Stephanomeria exigua;Stephanomeria exigua subsp. exigua | ||
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name=Stephanomeria exigua subsp. exigua | name=Stephanomeria exigua subsp. exigua | ||
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|rank=subspecies | |rank=subspecies | ||
|parent rank=species | |parent rank=species | ||
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|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_556.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Stephanomeria | |genus=Stephanomeria | ||
Latest revision as of 20:53, 5 November 2020
Heads in paniculiform arrays. Peduncles 10–40 mm, glabrous or sparsely glandular. Calyculi of appressed bractlets. Involucres glabrous or sparsely glandular. Florets 5–8. Cypselae 2.6–3.2 mm; pappi of 5–13 white to light tan bristles (widened bases persistent, bases connate in groups of 2–4, if bristles 5, breaking off completely, bristles plumose on distal 50%). 2n = 16.
Phenology: Flowering May–Jul.
Habitat: Sandy soils, deserts, sagebrush, creosote bush, pinyon-juniper woodlands, Joshua Tree communities
Elevation: 100–2000 m
Distribution
Ariz., Calif., Colo., Idaho, Nev., N.Mex., Oreg., Tex., Utah, Wash., Mexico (Baja California).
Discussion
Subspecies exigua is morphologically variable. Plants with pappi of 5 bristles (often called Stephanomeria pentachaeta) are found throughout its distribution; they are fully interfertile with plants having more bristles. Stephanomeria schottii A. Gray from southern Yuma County, Arizona, described as having a pappus of 4–6 bristles, “sparsely short-plumose toward the summit,” appears to be a synonym of subsp. exigua.
Selected References
None.