View source for Balsamorhiza macrophylla

{{Treatment/ID
|accepted_name=Balsamorhiza macrophylla
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Trans. Amer. Philos. Soc., n. s.
|place=7: 350. 1840
|year=1840
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Balsamorhiza hookeri var. idahoensis
|authority=(W. M. Sharp) Cronquist
|rank=variety
}} {{Treatment/ID/Synonym
|name=Balsamorhiza macrophylla var. idahoensis
|authority=W. M. Sharp
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Balsamorhiza;Balsamorhiza subg. Balsamorhiza;Balsamorhiza macrophylla
|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>[[Balsamorhiza]]</div><div class="higher-taxon"><small>subgenus</small>[[Balsamorhiza subg. Balsamorhiza]]</div><div class="higher-taxon"><small>species</small>[[Balsamorhiza macrophylla]]</div></div>
|volume=Volume 21
|mention_page=page 94, 95
|treatment_page=page 98
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>30–45(–100) cm. <b>Basal</b> leaves green, ovate to lanceolate, 20–50+ × 8–15 cm (pinnatifid, lobes lanceolate, 20–80+ × 10–40 mm, entire or ± dentate), bases ± cuneate, ultimate margins usually entire (plane or weakly revolute, ciliate), apices obtuse to acute, faces scabrous or piloso-hirtellous to pilose (at least abaxial usually gland-dotted as well). <b>Heads</b> usually borne singly. <b>Involucres</b> ± hemispheric, 20–30 mm diam. <b>Outer</b> phyllaries lance-ovate or lanceolate to lance-linear, 12–30(–40) mm, equaling or surpassing inner (margins ciliate), apices acute to attenuate. <b>Ray</b> laminae 35–50+ mm. <b>2n</b> = 100 ± 2.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Deep soils, rocky meadows, sagebrush scrublands, conifer forests
|elevation=1000–2400 m
|distribution=Idaho;Utah;Wyo.
|discussion=<p><i>Balsamorhiza macrophylla</i> is a high polyploid; it occurs sympatrically with <i>B. sagittata</i>. It evidently arose from hybridization between <i>B. sagittata</i> and <i>B. hispidula</i>. <i>Balsamorhiza macrophylla</i> has the multi-branched caudices and massive taproots of the former, and the leaf dissection of the latter. No hybrids with other species are known. Presumably, the high-polyploid chromosome complement precludes interbreeding. Plants of <i></i>var.<i> idahoensis</i> are smaller, are known only from southwestern Idaho and northeastern Utah, and differ from var. macrophylla by being pilose, with strongly shaggy-pilose involucres. More study may determine that <i></i>var.<i> idahoensis</i> merits specific rank. The Utah populations are not well understood and deserve attention.</p>
|tables=
|references={{Treatment/Reference
|id=helton1972a
|text=Helton, N., D. Wiens, and B. A. Barlow. 1972. High polyploidy and the origin of Balsamorhiza macrophylla. Madroño 21: 526–535.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Balsamorhiza macrophylla
|authority=Nuttall
|rank=species
|parent rank=subgenus
|synonyms=Balsamorhiza hookeri var. idahoensis;Balsamorhiza macrophylla var. idahoensis
|basionyms=
|family=Asteraceae
|phenology=Flowering May–Jul.
|habitat=Deep soils, rocky meadows, sagebrush scrublands, conifer forests
|elevation=1000–2400 m
|distribution=Idaho;Utah;Wyo.
|reference=helton1972a
|publication title=Trans. Amer. Philos. Soc., n. s.
|publication year=1840
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_229.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae
|genus=Balsamorhiza
|subgenus=Balsamorhiza subg. Balsamorhiza
|species=Balsamorhiza macrophylla
}}<!--

-->[[Category:Treatment]][[Category:Balsamorhiza subg. Balsamorhiza]]