Difference between revisions of "Wyethia helianthoides"
J. Acad. Nat. Sci. Philadelphia 7: 40, plate 5. 1834.
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|elevation=40–2600 m | |elevation=40–2600 m | ||
|distribution=Idaho;Mont.;Nev.;Oreg.;Wyo. | |distribution=Idaho;Mont.;Nev.;Oreg.;Wyo. | ||
| − | |discussion=<p>Hybrids between Wyethia helianthoides and W. amplexicaulis are infrequent where the species are in contact; no introgression has been noted. The hybrids have been called Wyethia ×cusickii Piper; they usually bloom later than W. helianthoides and earlier than W. amplexicaulis.</p> | + | |discussion=<p>Hybrids between <i>Wyethia helianthoides</i> and <i>W. amplexicaulis</i> are infrequent where the species are in contact; no introgression has been noted. The hybrids have been called <i>Wyethia</i> ×cusickii <i>Piper</i>; they usually bloom later than <i>W. helianthoides</i> and earlier than <i>W. amplexicaulis</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1834 | |publication year=1834 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_244.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Revision as of 16:33, 18 September 2019
Plants 25–40(–80) cm. Basal leaves: blades (light green) lance-elliptic to elliptic-ovate, (10–)20–30+ cm, margins usually entire, sometimes denticulate, ± ciliolate, faces sparsely pilose to pilosulous (usually minutely gland-dotted or stipitate-glandular as well); cauline leaves similar, smaller distally (petiolate or sessile). Heads borne singly. Involucres ± hemispheric, (12–)20–30(–40) mm diam. Phyllaries 36–48, subequal, herbaceous, margins villous-ciliate, faces glabrous or glabrate; outer 18–25 mm (not surpassing discs). Ray florets 13–25; laminae (cream to white) 25–45 mm. Cypselae 9–11 mm, strigillose distally and on margins.
Phenology: Flowering May–Jul.
Habitat: Meadows, other damp to wet sites, openings in pine forests
Elevation: 40–2600 m
Distribution
Idaho, Mont., Nev., Oreg., Wyo.
Discussion
Hybrids between Wyethia helianthoides and W. amplexicaulis are infrequent where the species are in contact; no introgression has been noted. The hybrids have been called Wyethia ×cusickii Piper; they usually bloom later than W. helianthoides and earlier than W. amplexicaulis.
Selected References
None.