Difference between revisions of "Wyethia amplexicaulis"
Trans. Amer. Philos. Soc., n. s. 7: 352. 1840.
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|name=Wyethia amplexicaulis subsp. major | |name=Wyethia amplexicaulis subsp. major | ||
|authority=Piper | |authority=Piper | ||
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|name=Wyethia amplexicaulis subsp. subresinosa | |name=Wyethia amplexicaulis subsp. subresinosa | ||
|authority=Piper | |authority=Piper | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Wyethia lanceolata | |name=Wyethia lanceolata | ||
|authority=unknown | |authority=unknown | ||
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|elevation=400–3000 m | |elevation=400–3000 m | ||
|distribution=Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. | |distribution=Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. | ||
| − | |discussion=<p>Wyethia amplexicaulis introgressively hybridizes with W. arizonica (producing plants called W. ×magna A. Nelson ex W. A. Weber) across a broad area of central and southern Colorado. Habit of the hybrid is typical of W. amplexicaulis; the indument resembles that of W. arizonica in varying degrees. Occasionally, W. amplexicaulis hybridizes with but does not introgress with W. helianthoides.</p> | + | |discussion=<p><i>Wyethia amplexicaulis</i> introgressively hybridizes with <i>W. arizonica</i> (producing plants called W. ×magna A. Nelson ex W. A. Weber) across a broad area of central and southern Colorado. Habit of the hybrid is typical of <i>W. amplexicaulis</i>; the indument resembles that of <i>W. arizonica</i> in varying degrees. Occasionally, <i>W. amplexicaulis</i> hybridizes with but does not introgress with <i>W. helianthoides</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1840 | |publication year=1840 | ||
|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_241.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Revision as of 15:33, 18 September 2019
Plants 25–50(–100) cm. Basal leaves: blades (green, shining) lance-elliptic or oblong-lanceolate to lanceolate, 15–30(–40+) cm, margins usually entire, sometimes denticulate or dentate, not ciliate, faces glabrous (gland-dotted, vernicose); cauline leaves similar, smaller distally (distalmost sessile, usually ± clasping). Heads usually 2–8 in ± corymbiform to racemiform arrays, sometimes borne singly. Involucres hemispheric to turbinate, 15–30 mm diam. Phyllaries 18–36+, subequal or unequal, herbaceous (at least outer), margins not ciliate, faces glabrous; outer 18–32 mm (surpassing inner). Ray florets 8–21(–25); laminae 25–60 mm. Cypselae 8–9 mm, glabrous. 2n = 38.
Phenology: Flowering May–Jul.
Habitat: Wet to dry, open sites, meadows, sagebrush scrub, yellow-pine forests
Elevation: 400–3000 m
Distribution
Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
Discussion
Wyethia amplexicaulis introgressively hybridizes with W. arizonica (producing plants called W. ×magna A. Nelson ex W. A. Weber) across a broad area of central and southern Colorado. Habit of the hybrid is typical of W. amplexicaulis; the indument resembles that of W. arizonica in varying degrees. Occasionally, W. amplexicaulis hybridizes with but does not introgress with W. helianthoides.
Selected References
None.