Difference between revisions of "Isocoma menziesii var. vernonioides"

(Nuttall) G. L. Nesom

Phytologia 70: 101. 1991.

Basionym: Isocoma vernonioides Nuttall Trans. Amer. Philos. Soc., n. s. 7: 320. 1840
Synonyms: Haplopappus venetus subsp. vernonioides (Nuttall) H. M. Hall Isocoma veneta var. vernonioides (Nuttall) Jepson
Treatment appears in FNA Volume 20. Treatment on page 443. Mentioned on page 442.
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|name=Isocoma vernonioides
 
|name=Isocoma vernonioides
 
|authority=Nuttall
 
|authority=Nuttall
 +
|rank=species
 
|publication_title=Trans. Amer. Philos. Soc., n. s.
 
|publication_title=Trans. Amer. Philos. Soc., n. s.
 
|publication_place=7: 320. 1840
 
|publication_place=7: 320. 1840
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|name=Haplopappus venetus subsp. vernonioides
 
|name=Haplopappus venetus subsp. vernonioides
 
|authority=(Nuttall) H. M. Hall
 
|authority=(Nuttall) H. M. Hall
 +
|rank=subspecies
 
}} {{Treatment/ID/Synonym
 
}} {{Treatment/ID/Synonym
 
|name=Isocoma veneta var. vernonioides
 
|name=Isocoma veneta var. vernonioides
 
|authority=(Nuttall) Jepson
 
|authority=(Nuttall) Jepson
 +
|rank=variety
 
}}
 
}}
 
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Isocoma;Isocoma menziesii;Isocoma menziesii var. vernonioides
 
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Isocoma;Isocoma menziesii;Isocoma menziesii var. vernonioides
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|distribution=Calif.;Mexico (Baja California).
 
|distribution=Calif.;Mexico (Baja California).
 
|discussion=<p>Of conservation concern.</p><!--
 
|discussion=<p>Of conservation concern.</p><!--
--><p>In San Diego and Riverside counties, plants of <i></i></i>var.<i><i> vernonioides</i> produce small leaves that are often nearly glabrous, perhaps reflecting the influence of genes from <i></i></i>var.<i><i> menziesii</i>.</p>
+
--><p>In San Diego and Riverside counties, plants of <i></i>var.<i> vernonioides</i> produce small leaves that are often nearly glabrous, perhaps reflecting the influence of genes from <i></i>var.<i> menziesii</i>.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Isocoma menziesii var. vernonioides
 
name=Isocoma menziesii var. vernonioides
|author=
 
 
|authority=(Nuttall) G. L. Nesom
 
|authority=(Nuttall) G. L. Nesom
 
|rank=variety
 
|rank=variety
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|publication year=1991
 
|publication year=1991
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_1016.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_1016.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Isocoma
 
|genus=Isocoma

Revision as of 19:23, 16 December 2019

Stems erect to ascending or decumbent; herbage hirtellous or villoso-pilose or densely gray-tomentose (hairs flattened, vitreous, long) to glabrate, sometimes stipitate-glandular. Leaf blades linear to oblanceolate or spatulate-oblong, 10–40 × 2–6(–9) mm, not thick-fleshy, margins of at least the proximal pinnately lobed or shallowly toothed. Heads in corymbiform arrays. Corollas 5–7 mm. Cypselae 2.3–3.6 mm. 2n = 24.


Phenology: Flowering (Apr–)Jul–Dec.
Habitat: Coastal bluffs and dunes, sandy flats, salt marsh borders, occasionally on dry slopes
Elevation: 5–400 m

Distribution

V20-1016-distribution-map.gif

Calif., Mexico (Baja California).

Discussion

Of conservation concern.

In San Diego and Riverside counties, plants of var. vernonioides produce small leaves that are often nearly glabrous, perhaps reflecting the influence of genes from var. menziesii.

Selected References

None.

Lower Taxa

None.
Guy L. Nesom +
(Nuttall) G. L. Nesom +
Isocoma vernonioides +
Calif. +  and Mexico (Baja California). +
5–400 m +
Coastal bluffs and dunes, sandy flats, salt marsh borders, occasionally on dry slopes +
Flowering (Apr–)Jul–Dec. +
Haplopappus venetus subsp. vernonioides +  and Isocoma veneta var. vernonioides +
Isocoma menziesii var. vernonioides +
Isocoma menziesii +
variety +