Difference between revisions of "Crepis occidentalis subsp. costata"
Publ. Carnegie Inst. Wash. 504: 124. 1938.
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|name=Crepis occidentalis var. costata | |name=Crepis occidentalis var. costata | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=variety | ||
|publication_title=in W. H. Brewer et al., Bot. California | |publication_title=in W. H. Brewer et al., Bot. California | ||
|publication_place=1: 435. 1876 | |publication_place=1: 435. 1876 | ||
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|elevation=1200–2500 m | |elevation=1200–2500 m | ||
|distribution=B.C.;Sask.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah.;Wash.;Wyo. | |distribution=B.C.;Sask.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah.;Wash.;Wyo. | ||
| − | |discussion=<p>The major distinguishing characteristic of < | + | |discussion=<p>The major distinguishing characteristic of <i></i>subsp.<i> costata</i> appears to be the relatively large, dark or black setae on the phyllaries. As defined by E. B. Babcock (1947), <i></i>subsp.<i> costata</i> is a series of polyploid apomictic forms that are difficult to distinguish from <i></i>subsp.<i> occidentalis</i>, as well as other species such as <i>C. intermedia</i> and <i>C. bakeri</i>. Reports for Arizona and South Dakota were not confirmed for this treatment.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Crepis occidentalis subsp. costata | name=Crepis occidentalis subsp. costata | ||
| − | |||
|authority=(A. Gray) Babcock & Stebbins | |authority=(A. Gray) Babcock & Stebbins | ||
|rank=subspecies | |rank=subspecies | ||
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|publication year=1938 | |publication year=1938 | ||
|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/V19_299.xml |
|tribe=Asteraceae tribe Cichorieae | |tribe=Asteraceae tribe Cichorieae | ||
|genus=Crepis | |genus=Crepis | ||
Revision as of 19:18, 16 December 2019
Plants 8–40 cm. Stems tomentose, sometimes stipitate-glandular distally. Leaves 5–20 × 2–3.5 cm, pinnately lobed (lobes dentate; distal cauline stipitate-glandular and with large dark or black setae). Heads 15–30. Peduncles stipitate-glandular. Phyllaries 7–8, stipitate-glandular and with dark or black, glandular setae. Florets 10–14. Cypselae golden brown. 2n = 44.
Phenology: Flowering Jun–Jul.
Habitat: Grassy banks, dry rocky hillsides, black shale or sandstone, juniper-oak woods
Elevation: 1200–2500 m
Distribution
B.C., Sask., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah., Wash., Wyo.
Discussion
The major distinguishing characteristic of subsp. costata appears to be the relatively large, dark or black setae on the phyllaries. As defined by E. B. Babcock (1947), subsp. costata is a series of polyploid apomictic forms that are difficult to distinguish from subsp. occidentalis, as well as other species such as C. intermedia and C. bakeri. Reports for Arizona and South Dakota were not confirmed for this treatment.
Selected References
None.