View source for Solidago ptarmicoides

{{Treatment/ID
|accepted_name=Solidago ptarmicoides
|accepted_authority=(Torrey & A. Gray) B. Boivin
|publications={{Treatment/Publication
|title=Phytologia
|place=23: 21. 1972
|year=1972
}}
|common_names=Upland white aster;white flat-top goldenrod;verge d’or faux-ptarmica
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Aster ptarmicoides
|authority=Torrey & A. Gray
|rank=species
|publication_title=Fl. N. Amer.
|publication_place=2: 160. 1842
}}
|synonyms={{Treatment/ID/Synonym
|name=Diplopappus albus
|authority=(Nuttall) Lindley ex Hooker
|rank=species
}} {{Treatment/ID/Synonym
|name=Diplopappus ptarmicoides
|authority=(Nees) Lindley
|rank=species
}} {{Treatment/ID/Synonym
|name=Doellingeria ptarmicoides
|authority=Nees
|rank=species
}} {{Treatment/ID/Synonym
|name=Eucephalus albus
|authority=(Nuttall) Nuttall
|rank=species
}} {{Treatment/ID/Synonym
|name=Heleastrum album
|authority=(Nuttall) de Candolle
|rank=species
}} {{Treatment/ID/Synonym
|name=Inula alba
|authority=Nuttall
|rank=species
}} {{Treatment/ID/Synonym
|name=Oligoneuron album
|authority=(Nuttall) G. L. Nesom
|rank=species
}} {{Treatment/ID/Synonym
|name=Solidago asteroides
|authority=Semple
|rank=species
}} {{Treatment/ID/Synonym
|name=Unamia alba
|authority=(Nuttall) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Unamia ptarmicoides
|authority=(Nees) Greene
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Solidago;Solidago sect. Ptarmicoidei;Solidago ptarmicoides
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Solidago]]</div><div class="higher-taxon"><small>section</small>[[Solidago sect. Ptarmicoidei]]</div><div class="higher-taxon"><small>species</small>[[Solidago ptarmicoides]]</div></div>
|volume=Volume 20
|mention_page=page 108, 162, 165, 166
|treatment_page=page 164
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Plants </b>10–40 cm;</span> <span class="statement" id="st-d0_s1" data-properties="caudex architecture">caudices branching;</span> <span class="statement" id="st-d0_s2" data-properties="vascular-bundle condition;petiole base condition">vascular-bundles and petiole bases marcescent (attached to old stems for more than a season).</span> <span class="statement" id="st-d0_s3" data-properties="stem quantity;stem orientation;stem size;stem pubescence;stem pubescence"><b>Stems </b>1–20+, erect, slender, glabrous proximally, hispid distally.</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf position;leaf position;leaf duration;leaf architecture;blade architecture;blade shape;blade length;blade width;blade fragility;blade prominence or shape;margin shape;margin shape;face pubescence;face pubescence"><b>Leaves:</b> basal and proximal cauline persistent, subpetiolate to sessile, blades sometimes 3-nerved, linear to linear-lanceolate, 60–100 × 7–10 mm, stiff, flat, margins entire or subentire, faces glabrous or sparsely hairy;</span> <span class="statement" id="st-d0_s5" data-properties="cauline leaf architecture;blade shape;blade length;blade width;blade size;margin architecture or shape">mid to distal cauline sessile, blades linear-oblanceolate to linear, 20–40 × 3–5 mm, reduced distally, margins entire.</span> <span class="statement" id="st-d0_s6" data-properties="head atypical quantity;head quantity;array architecture"><b>Heads </b>1–25 (–50), in corymbiform arrays.</span> <span class="statement" id="st-d0_s7" data-properties="peduncle some measurement;peduncle pubescence"><b>Peduncles </b>29–36.5 mm, strigillose;</span> <span class="statement" id="st-d0_s8" data-properties="bracteole arrangement or course or shape">bracteoles linear.</span> <span class="statement" id="st-d0_s9" data-properties="involucre some measurement"><b>Involucres </b>5–6 mm.</span> <span class="statement" id="st-d0_s10" data-properties="phyllarie architecture;phyllarie arrangement or course or shape;phyllarie size;series quantity;outer phyllarie shape;inner phyllarie shape;inner phyllarie pubescence"><b>Phyllaries </b>in 4–5 series, usually prominently 1-nerved, linear, strongly unequal, outer acute, inner acute to obtuse, glabrous.</span> <span class="statement" id="st-d0_s11" data-properties="ray-floret quantity;ray-floret coloration;ray-floret coloration"><b>Ray-</b>florets 10–20, usually white, rarely pale-yellow (conspicuous);</span> <span class="statement" id="st-d0_s12" data-properties="lamina length;lamina width">laminae 7–7.3 × 1.4–1.6 mm.</span> <span class="statement" id="st-d0_s13" data-properties="disc-floret quantity"><b>Disc-</b>florets 30–36;</span> <span class="statement" id="st-d0_s14" data-properties="corolla some measurement;lobe some measurement">corollas 3.8–4.1 mm, lobes 0.5–0.7 mm.</span> <span class="statement" id="st-d0_s15" data-properties="cypsela some measurement;cypsela pubescence"><b>Cypselae </b>(obconic) 1–1.5 mm (ribbed), glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="">pappi 3.4–4 mm (apically clavate).</span> <span class="statement" id="st-d0_s17" data-properties="pappus some measurement;2n chromosome quantity">2n = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Oct.
|habitat=Dry, sandy, usually calcareous soils, cracks in rocks, limestone pavements, rocky outcrops, grassy slopes, prairies
|elevation=0–1500 m
|distribution=Man.;Ont.;Que.;Sask.;Colo.;Conn.;Ill.;Ind.;Iowa;Mich.;Minn.;Mo.;Mont.;N.H.;N.Y.;Ohio;Okla.;S.C.;S.Dak.;Vt.;Wis.;Wyo.
|discussion=<p>L. Brouillet and J. C. Semple (1981) summarized the morphologic, chemical, cytological, and hybridization data on Solidago ptarmicoides and concluded that, except for the white rays, it is a typical member of sect. Ptarmicoidei. The species hybridizes with S. rigida, S. ohioensis, S. riddellii, and perhaps other goldenrods. It is not known to hybridize with any species of aster (regardless of genus); the supposed Aster × Solidago hybrids are the basis of all reports of intergeneric hybrids in the literature. Horticultural hybrids involving S. ptarmicoides and other Solidago species have been treated as S. ×luteus (M. L. Green ex Dress) Brouillet & Semple (×Solidaster luteus M. L. Green ex Dress). Solidago ×bernardii B. Boivin [Oligoneuron ×bernardii (B. Boivin) G. L. Nesom] is the formal name applied to S. ptarmicoides × S. riddellii hybrids; those have cream rays. Solidago ×lutescens (Lindley ex de Candolle) B. Boivin [Diplopappus lutescens Lindley ex de Candolle; D. albus var. lutescens (Lindley ex de Candolle) Hooker ex Torrey & A. Gray; Aster lutescens (Lindley ex de Candolle) Hooker ex Torrey & A. Gray; A. ptarmicoides var. lutescens (Lindley ex de Candolle) A. Gray; Oligoneuron ×lutescens (Lindley ex de Candolle) G. L. Nesom] applies to hybrids between S. ptarmicoides and S. rigida or S. riddellii from the prairies; these also have cream colored rays.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Solidago ptarmicoides
|authority=(Torrey & A. Gray) B. Boivin
|rank=species
|parent rank=section
|synonyms=Diplopappus albus;Diplopappus ptarmicoides;Doellingeria ptarmicoides;Eucephalus albus;Heleastrum album;Inula alba;Oligoneuron album;Solidago asteroides;Unamia alba;Unamia ptarmicoides
|basionyms=Aster ptarmicoides
|family=Asteraceae
|phenology=Flowering Jul–Oct.
|habitat=Dry, sandy, usually calcareous soils, cracks in rocks, limestone pavements, rocky outcrops, grassy slopes, prairies
|elevation=0–1500 m
|distribution=Man.;Ont.;Que.;Sask.;Colo.;Conn.;Ill.;Ind.;Iowa;Mich.;Minn.;Mo.;Mont.;N.H.;N.Y.;Ohio;Okla.;S.C.;S.Dak.;Vt.;Wis.;Wyo.
|reference=None
|publication title=Phytologia
|publication year=1972
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20_359.xml
|tribe=Asteraceae tribe Astereae
|genus=Solidago
|section=Solidago sect. Ptarmicoidei
|species=Solidago ptarmicoides
|2n chromosome quantity=18
|array architecture=corymbiform
|blade architecture=3-nerved
|blade fragility=stiff
|blade length=20mm;40mm
|blade prominence or shape=flat
|blade shape=linear-oblanceolate;linear
|blade size=reduced
|blade width=3mm;5mm
|bracteole arrangement or course or shape=linear
|caudex architecture=branching
|cauline leaf architecture=sessile
|corolla some measurement=3.8mm;4.1mm
|cypsela pubescence=glabrous
|cypsela some measurement=1mm;1.5mm
|disc-floret quantity=30;36
|face pubescence=hairy;glabrous
|head atypical quantity=25;50
|head quantity=1;25
|inner phyllarie pubescence=glabrous
|inner phyllarie shape=acute;obtuse
|involucre some measurement=5mm;6mm
|lamina length=7mm;7.3mm
|lamina width=1.4mm;1.6mm
|leaf architecture=subpetiolate;sessile
|leaf duration=persistent
|leaf position=cauline;proximal;basal
|lobe some measurement=0.5mm;0.7mm
|margin architecture or shape=entire
|margin shape=subentire;entire
|outer phyllarie shape=acute
|pappus some measurement=3.4mm;4mm
|peduncle pubescence=strigillose
|peduncle some measurement=29mm;36.5mm
|petiole base condition=marcescent
|phyllarie architecture=1-nerved
|phyllarie arrangement or course or shape=linear
|phyllarie size=unequal
|ray-floret coloration=pale-yellow;white
|ray-floret quantity=10;20
|series quantity=4;5
|stem orientation=erect
|stem pubescence=hispid;glabrous
|stem quantity=1;20
|stem size=slender
|vascular-bundle condition=marcescent
|whole_organism growth form=plant
|whole_organism some measurement=10cm;40cm
}}<!--

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