View source for Solidago speciosa

{{Treatment/ID
|accepted_name=Solidago speciosa
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Gen. N. Amer. Pl.
|place=2: 160. 1818
|year=1818
}}
|common_names=Showy or noble goldenrod
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Aster speciosus
|authority=(Nuttall) Kuntze
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Solidago;Solidago sect. Solidago;Solidago subsect. Squarrosae;Solidago speciosa
|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. Solidago]]</div><div class="higher-taxon"><small>subsection</small>[[Solidago subsect. Squarrosae]]</div><div class="higher-taxon"><small>species</small>[[Solidago speciosa]]</div></div>
|volume=Volume 20
|mention_page=page 119, 125
|treatment_page=page 123
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>(30–)50–200 cm; caudices stout, woody. <b>Stems</b> 1(–5), erect, glabrous proximally to strigillose in arrays. <b>Leaves</b>: basal and proximal cauline (sometimes withering by flowering) tapering to winged petioles, blades lanceolate to ovate-elliptic, 50–300 (including petiole) × 12–80 mm (sometimes firm), margins sharply serrate to crenate or entire, faces glabrate to sparsely strigillose; mid to distal cauline sessile, blades narrowly ovate to lanceolate or elliptic, 25–90 × 5–30 mm, gradually reduced distally, margins serrulate to entire (distally), ciliate, faces glabrous or sparsely scabroso-strigose. <b>Heads</b> 15–300+, not secund, in usually dense, sometimes open, elongate, paniculiform to thyrsiform arrays, (5–)10–45 × (2–)3–7(–12) cm; branches strongly ascending, often racemiform. <b>Peduncles</b> 1.5–3 mm, sparsely to moderately scabroso-strigillose; bracteoles linear, grading into phyllaries, scattered along peduncles, clustered near heads. <b>Involucres</b> narrowly campanulate, 4–6.5 mm. <b>Phyllaries</b> in 3–4 series, appressed, strongly unequal, outer ovate, mid and inner lanceolate, (midnerves often raised and thick) apices acute to obtuse or rounded, glabrous. <b>Ray</b> florets (2–)3–7(–9); laminae 3–4 × 0.5–1 mm. <b>Disc</b> florets 6–16; corollas 2.5–4 mm, lobes 0.5–1.2 mm. <b>Cypselae</b> (narrowly obconic) 1.6–2.5 mm, glabrous; pappi 3–4.5 mm.</span><!--

-->{{Treatment/Body
|distribution=North America.
|discussion=<p>Subspecies 2 (2 in the flora).</p><!--
--><p><i>Solidago speciosa</i> occurs scattered throughout its range, often in small populations. Five races have been acknowledged; only three varieties appear to warrant recognition. The species is divided into two nearly allopatric subspecies. The typical subspecies includes two varieties that are sometimes difficult to distinguish and considerably overlap in their ranges. The differences in size and number of leaves and persistence of the proximal cauline leaves may be caused in part by growing conditions.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaves pale green, somewhat glaucous; plants 30–80 cm; e Colorado, extreme w Oklahoma, and adjacent New Mexico, disjunct in Black Hills (S. speciosa subsp. pallida)
|[[19b.Solidago speciosa var. pallida|19b.Solidago speciosa var. pallida]]
|-id=key-0-1
|1
|Leaves usually dark green, not glaucous; plants usually 80–200 cm; e deciduous forest onto e prairies and oak savannas (S. speciosa subsp. speciosa)
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Basal leaves usually present at flowering, (20–) 28–55 mm wide, often coarsely serrate; mid cauline leaves (10–)20–28 mm wide, not crowded, not stiff, not scabrous; e UnitedStates
|[[19a.Solidago speciosa var. speciosa|19a.Solidago speciosa var. speciosa]]
|-id=key-0-2
|2
|Basal leaves persisting or not to flowering, 8–20 mm wide, often entire or shallowly serrate; mid cauline leaves 4–15(–20) mm wide, often crowded, usually stiff, often somewhat scabrous; w portions of deciduous forest and adjacent prairies, glade habitats further east
|[[19a.Solidago speciosa var. rigidiuscula|19a.Solidago speciosa var. rigidiuscula]]
|}
</div></div><!--

-->{{#Taxon:
name=Solidago speciosa
|authority=Nuttall
|rank=species
|parent rank=subsection
|synonyms=Aster speciosus
|basionyms=
|family=Asteraceae
|distribution=North America.
|reference=None
|publication title=Gen. N. Amer. Pl.
|publication year=1818
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_245.xml
|tribe=Asteraceae tribe Astereae
|genus=Solidago
|section=Solidago sect. Solidago
|subsection=Solidago subsect. Squarrosae
|species=Solidago speciosa
}}<!--

-->[[Category:Treatment]][[Category:Solidago subsect. Squarrosae]]