View source for Wyethia

{{Treatment/ID
|accepted_name=Wyethia
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=J. Acad. Nat. Sci. Philadelphia
|place=7: 39, plate 5. 1834
|year=1834
}}
|common_names=Mules-ears
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Wyethia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Ecliptinae]]</div><div class="higher-taxon"><small>genus</small>[[Wyethia]]</div></div>
|etymology=For Nathaniel Jarvis Wyeth, 1802–1856, early western American explorer
|volume=Volume 21
|mention_page=page 65, 66
|treatment_page=page 100
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 15–60(–100) cm (taproots relatively massive; caudices seldom branched). <b>Stems</b> erect (or bending erect from bases), branched mostly from bases. <b>Leaves</b> basal and cauline; alternate; usually petiolate (basal), sometimes sessile; blades (usually pinnately nerved, basal larger than cauline) ± deltate, elliptic-ovate, lanceolate, lance-elliptic, lance-linear, or oblong-ovate, bases truncate to cuneate, margins usually entire, rarely dentate to serrate (sometimes ciliate), faces glabrous or hairy (sometimes gland-dotted or finely stipitate-glandular). <b>Heads</b> radiate, borne singly or 2–5(–8+) in ± corymbiform to racemiform arrays. <b>Involucres</b> hemispheric to campanulate or turbinate, 12–60+ mm diam. <b>Phyllaries</b> persistent, 12–36(–48) in 2–3+ series (subequal to unequal, outer sometimes foliaceous, much larger than inner). <b>Receptacles</b> flat to convex, paleate (paleae conduplicate, at least bases, papery). <b>Ray</b> florets 5–25+, pistillate, fertile; corollas mostly yellow (cream to white in <i>W. helianthoides</i>). <b>Disc</b> florets 35–150+, bisexual, fertile; corollas yellow, tubes much shorter than cylindric throats; lobes 5, ± deltate to lanceolate (style branches stigmatic in 2 barely distinct lines, appendages ± filiform). <b>Cypselae</b> ± prismatic, weakly 3–4-angled (faces glabrous or hairy); pappi 0, or persistent, coroniform (usually lacerate) or of 1–4+ ovate to subulate, erose to lacerate (often basally connate) scales. <b>x</b> = 19.</span><!--

-->{{Treatment/Body
|distribution=w North America.
|discussion=<p>Species 8 (8 in the flora).</p><!--
--><p>Some species formerly included in <i>Wyethia</i> are here treated in <i>Agnorhiza</i> and <i>Scabrethia</i>. <i>Balsamorhiza</i> is closely related to <i>Wyethia</i>.</p>
|tables=
|references={{Treatment/Reference
|id=weber1946a
|text=Weber, W. A. 1946. A taxonomic and cytological study of the genus Wyethia, family Compositae, with notes on the related genus Balsamorhiza. Amer. Midl. Naturalist 35: 400–452.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Involucres 35–60+ mm diam.; outer phyllaries (30–)40–80+ mm (± foliaceous, much surpassing discs)
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Involucres 10–30(–40) mm diam.; outer phyllaries 15–30(–40) mm (not foliaceous, seldom surpassing discs)
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Leaf blades: faces glabrous or finely stipitate-glandular, sometimes sparsely pilosulous as well (usually shining); cypselae 10–13 mm
|[[Wyethia glabra|Wyethia glabra]]
|-id=key-0-2
|2
|Leaf blades: faces densely tomentose to tomentulose (usually gland-dotted as well), glabrescent; cypselae 12–15 mm
|[[Wyethia helenioides|Wyethia helenioides]]
|-id=key-0-3
|3
|Leaf blades: faces tomentose to tomentulose (at least when young, glabrescent, usuallygland-dotted)
|[[Wyethia mollis|Wyethia mollis]]
|-id=key-0-3
|3
|Leaf blades: faces glabrous, glabrate, hirsute, hirsutulous, hirtellous, pilose, pilosulous, scabrellous, or strigillose (not tomentose to tomentulose, often gland-dotted or stipitate-glandular)
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Leaf blades: faces glabrous or glabrate (gland-dotted); phyllary margins not ciliate; cypselae glabrous
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Leaf blades: faces usually hirsute, hirsutulous, hirtellous, pilose, pilosulous, scabrellous, or strigillose (sometimes vernicose, rarely finely stipitate-glandular or gland-dotted), sometimes glabrate; phyllary margins ± ciliate; cypselae strigillose or glabrous
|[[#key-0-6| > 6]]
|-id=key-0-5
|5
|Basal leaves: blades lance-elliptic or oblong-lanceolate to lanceolate; rays 8–21(–25), laminae 25–60 mm; cypselae 8–9 mm
|[[Wyethia amplexicaulis|Wyethia amplexicaulis]]
|-id=key-0-5
|5
|Basal leaves: blades narrowly oblong-lanceolate to lance-linear; rays 5–8+, lami-nae 18–30 mm; cypselae 6–8 mm
|[[Wyethia longicaulis|Wyethia longicaulis]]
|-id=key-0-6
|6
|Basal leaves: blades lanceolate to lance-linear; cypselae 7–8 mm, ± strigillose
|[[Wyethia angustifolia|Wyethia angustifolia]]
|-id=key-0-6
|6
|Basal leaves: blades elliptic-ovate, lanceolate, or lance-elliptic; cypselae 9–11 mm, strigillose or glabrous
|[[#key-0-7| > 7]]
|-id=key-0-7
|7
|Phyllaries 36–48; rays 13–25, laminae (cream to white) 25–45 mm; cypselae strigillose distally and on margins
|[[Wyethia helianthoides|Wyethia helianthoides]]
|-id=key-0-7
|7
|Phyllaries 16–34; rays 11–12, laminae (yellow) 25–50 mm; cypselaeglabrous
|[[Wyethia arizonica|Wyethia arizonica]]
|}
</div></div><!--

-->{{#Taxon:
name=Wyethia
|author=William A. Weber
|authority=Nuttall
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=John Myers
|illustration copyright=Flora of North America Association
|distribution=w North America.
|reference=weber1946a
|publication title=J. Acad. Nat. Sci. Philadelphia
|publication year=1834
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_237.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae
|genus=Wyethia
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Ecliptinae]]