View source for Saussurea nuda

{{Treatment/ID
|accepted_name=Saussurea nuda
|accepted_authority=Ledebour
|publications={{Treatment/Publication
|title=Icon. Pl.
|place=1: 15, plate 61. 1829
|year=1829
}}
|common_names=Chaffless or dwarf saw-wort
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Saussurea alpina
|authority=(Linnaeus) de Candolle
|rank=species
}} {{Treatment/ID/Synonym
|name=Saussurea alpina var. ledebourii
|authority=A. Gray
|rank=variety
}} {{Treatment/ID/Synonym
|name=Saussurea densa
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Saussurea nuda subsp. densa
|authority=(Hooker) G. W. Douglas
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Saussurea nuda var. densa
|authority=(Hooker) Hultén
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Saussurea;Saussurea nuda
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cardueae]]</div><div class="higher-taxon"><small>genus</small>[[Saussurea]]</div><div class="higher-taxon"><small>species</small>[[Saussurea nuda]]</div></div>
|volume=Volume 19
|mention_page=page 165, 168
|treatment_page=page 167
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Plants </b>5–60 cm;</span> <span class="statement" id="st-d0_s1" data-properties="caudex architecture">branched caudices;</span> <span class="statement" id="st-d0_s2" data-properties="herbage pubescence;herbage pubescence">herbage subglabrous to loosely tomentose when young, ± glabrescent, at least proximally.</span> <span class="statement" id="st-d0_s3" data-properties="stem architecture"><b>Stems </b>usually simple.</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf position;leaf size;leaf shape;petiole architecture;petiole some measurement;blade shape;blade some measurement;base shape;margin shape;margin shape;apex shape"><b>Leaves </b>basal and cauline ± smaller distally, tapered to winged petioles to 7 cm, blades elliptic or lanceolate to ovate, 5–15 cm, bases obtuse to acute, margins subentire to sinuate, dentate or denticulate, apices acute to acuminate;</span> <span class="statement" id="st-d0_s5" data-properties="distal cauline leaf architecture;distal cauline leaf shape">distal cauline sessile, ± decurrent.</span> <span class="statement" id="st-d0_s6" data-properties="array architecture"><b>Heads </b>3–20+ in corymbiform to subcapitate arrays;</span> <span class="statement" id="st-d0_s7" data-properties="head quantity">(peduncles 0–5 cm).</span> <span class="statement" id="st-d0_s8" data-properties="involucre some measurement"><b>Involucres </b>10–15 mm.</span> <span class="statement" id="st-d0_s9" data-properties="phyllary arrangement;phyllary shape;series quantity;series size;abaxial face coloration;abaxial face coloration;abaxial face coloration;abaxial face coloration;abaxial face pubescence;abaxial face pubescence"><b>Phyllaries </b>in 3–4 series subequal or weakly imbricate, linear to lanceolate, abaxial faces dark green, often tinged dark purplish, loosely villous or ± tomentose.</span> <span class="statement" id="st-d0_s10" data-properties="receptacle architecture"><b>Receptacles </b>naked.</span> <span class="statement" id="st-d0_s11" data-properties="floret quantity"><b>Florets </b>15–20;</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration or density;corolla some measurement;tube some measurement;throat some measurement;lobe some measurement">corollas purple, 8–11 mm, tubes 4–6 mm, throats 1.5–2 mm, lobes 3–3.5 mm;</span> <span class="statement" id="st-d0_s13" data-properties="anther coloration">anthers dark purple.</span> <span class="statement" id="st-d0_s14" data-properties="cypsela coloration;cypsela some measurement"><b>Cypselae </b>stramineous, 6–7 mm;</span> <span class="statement" id="st-d0_s15" data-properties="outer bristle coloration;outer bristle some measurement;inner bristle some measurement;2n chromosome quantity">pappi of white to brownish, outer bristles 1–3 mm, inner 9–10 mm. <b>2n</b> = 26 (as S. densa).</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Coastal dunes, estuaries, alpine tundra
|elevation=0–100, 2000–2800 m
|distribution=Alta.;B.C.;Alaska;Mont.;Russian Far East
|discussion=<p>North American populations of Saussurea nuda occur in two distinctly different sets of habitats. Plants from coastal Alaska have been recognized as var. nuda and dwarfed alpine plants from the northern Rockies as var. densa. According to E. Hultén (1941–1950, vol. 10), the only differences between var. densa and var. nuda are the “more densely denticulated leaves and very congested inflorescences” of the former. Notwithstanding the very different habitats, some coastal Alaskan specimens [e.g., Ward 53 (ALA)] are indistinguishable from the alpine forms. In Siberia, S. nuda is a polymorphic species occurring from coastal sites to alpine areas (S. J. Lipschitz 1979).</p><!--
--><p>Saussurea ×tschuktschorum Lipschitz is apparently a hybrid between S. angustifolia and S. nuda. It resembles S. angustifolia; it has naked receptacles like S. nuda.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Saussurea nuda
|authority=Ledebour
|rank=species
|parent rank=genus
|synonyms=Saussurea alpina;Saussurea alpina var. ledebourii;Saussurea densa;Saussurea nuda subsp. densa;Saussurea nuda var. densa
|basionyms=
|family=Asteraceae
|phenology=Flowering Jun–Aug.
|habitat=Coastal dunes, estuaries, alpine tundra
|elevation=0–100, 2000–2800 m
|distribution=Alta.;B.C.;Alaska;Mont.;Russian Far East
|reference=None
|publication title=Icon. Pl.
|publication year=1829
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_179.xml
|tribe=Asteraceae tribe Cardueae
|genus=Saussurea
|species=Saussurea nuda
|2n chromosome quantity=26
|abaxial face coloration=purplish;tinged dark;purplish;dark green
|abaxial face pubescence=tomentose;villous
|anther coloration=dark purple
|apex shape=acute;acuminate
|array architecture=corymbiform;subcapitate
|base shape=obtuse;acute
|blade shape=lanceolate;ovate
|blade some measurement=5cm;15cm
|caudex architecture=branched
|corolla coloration or density=purple
|corolla some measurement=8mm;11mm
|cypsela coloration=stramineous
|cypsela some measurement=6mm;7mm
|distal cauline leaf architecture=sessile
|distal cauline leaf shape=decurrent
|floret quantity=15;20
|head quantity=3;20
|herbage pubescence=glabrescent;subglabrous;loosely tomentose
|inner bristle some measurement=9mm;10mm
|involucre some measurement=10mm;15mm
|leaf position=cauline;basal
|leaf shape=tapered
|leaf size=smaller
|lobe some measurement=3mm;3.5mm
|margin shape=subentire;sinuate dentate or denticulate
|outer bristle coloration=white;brownish
|outer bristle some measurement=1mm;3mm
|petiole architecture=winged
|petiole some measurement=0cm;7cm
|phyllary arrangement=imbricate
|phyllary shape=linear;lanceolate
|receptacle architecture=naked
|series quantity=3;4
|series size=subequal
|stem architecture=simple
|throat some measurement=1.5mm;2mm
|tube some measurement=4mm;6mm
|whole_organism growth form=plant
|whole_organism some measurement=5cm;60cm
}}<!--

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