View source for Saussurea angustifolia

{{Treatment/ID
|accepted_name=Saussurea angustifolia
|accepted_authority=(Linnaeus) de Candolle
|publications={{Treatment/Publication
|title=Ann. Mus. Natl. Hist. Nat.
|place=16: 200. 1810
|year=1810
}}
|common_names=Narrow-leaved saw-wort;common saussurea
|basionyms={{Treatment/ID/Basionym
|name=Serratula alpina var. angustifolia
|authority=Linnaeus
|rank=variety
|publication_title=Sp. Pl.
|publication_place=2: 817. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Serratula angustifolia
|authority=(Linnaeus) Willdenow
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Saussurea;Saussurea angustifolia
|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 angustifolia]]</div></div>
|volume=Volume 19
|mention_page=page 165, 168
|treatment_page=page 166
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>3–50 cm; herbage loosely tomentose when young, ± glabrescent. <b>Stems</b> arising from slender rhizomes, usually simple or few, ascending. <b>Leaves</b> basal and cauline, smaller distally, sessile, blades linear to narrowly elliptic, 3–12(–25) cm, bases acute, margins entire or remotely dentate, apices acute. <b>Heads</b> 2–10+ in open or crowded corymbiform arrays; (peduncles 1–5 cm). <b>Involucres</b> 9–14 mm. <b>Phyllaries</b> strongly unequal, the outer ± ovate, inner lanceolate, abaxial faces dark green, usually also tinged dark purplish, pilose or loosely tomentose; tips of outer and mid phyllaries acute. <b>Receptacles</b> scaly. <b>Florets</b> 8–22; corollas purple, 11–15 m, tubes 6–7.5 mm, throats 2–2.5 mm, lobes 3–5. mm; anthers darker purple. <b>Cypselae</b> 3–4 mm; pappus bristles brownish, outer 1–2 mm, the inner 9–10 mm.</span><!--

-->{{Treatment/Body
|distribution=nw Canada;Alaska;Russian Far East (Chukotka).
|discussion=<p>Varieties 3 (3 in the flora).</p><!--
--><p>Extreme forms of the varieties of <i>Saussurea angustifolia</i> are distinctive, ranging from slender, erect, subglabrous specimens of <i></i>var.<i> angustifolia</i> to dwarf, densely pubescent forms of vars. viscida and yukonensis. The extremes are connected by intermediates. As is indicated by the synonymy, little unanimity exists in the interpretation of these taxa. I have chosen to follow S. L. Welsh (1974) in treating <i>S. densa</i> as a variety of <i>S. angustifolia</i> rather than as a distinct species. The extent to which the differences among these taxa are genetic or environmentally induced has not been investigated.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Outer phyllaries usually 1.5–2 times longer than wide; stems 10–40(–50) cm; leaves mostly 2–8 mm wide
|[[Saussurea angustifolia var. angustifolia|Saussurea angustifolia var. angustifolia]]
|-id=key-0-1
|1
|Outer phyllaries usually 2–4 times longer than wide; stems usually 3–15 cm; leaves often wider than 8 mm
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves tomentose throughout or villous and viscid-glandular on margins and abaxially on midvein; plants mostly 5–15 cm; mostly coastal and insular Alaska
|[[Saussurea angustifolia var. viscida|Saussurea angustifolia var. viscida]]
|-id=key-0-2
|2
|Leaves ± arachnoid-tomentose, not or scarcely glandular-viscid, bases usually white tomentose; plants mostly 3–14 cm; interior Alaska and Yukon
|[[Saussurea angustifolia var. yukonensis|Saussurea angustifolia var. yukonensis]]
|}
</div></div><!--

-->{{#Taxon:
name=Saussurea angustifolia
|authority=(Linnaeus) de Candolle
|rank=species
|parent rank=genus
|synonyms=Serratula angustifolia
|basionyms=Serratula alpina var. angustifolia
|family=Asteraceae
|distribution=nw Canada;Alaska;Russian Far East (Chukotka).
|reference=None
|publication title=Ann. Mus. Natl. Hist. Nat.
|publication year=1810
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_175.xml
|tribe=Asteraceae tribe Cardueae
|genus=Saussurea
|species=Saussurea angustifolia
}}<!--

-->[[Category:Treatment]][[Category:Saussurea]]