View source for Antennaria howellii

{{Treatment/ID
|accepted_name=Antennaria howellii
|accepted_authority=Greene
|publications={{Treatment/Publication
|title=Pittonia
|place=3: 174. 1897
|year=1897
}}
|common_names=Howell’s pussytoes;antennaire de Howell
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Antennaria neglecta subsp. howellii
|authority=(Greene) Hultén
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=A. neglecta var. howellii
|authority=(Greene) Cronquist
|rank=variety
}} {{Treatment/ID/Synonym
|name=A. neodioica subsp. howellii
|authority=(Greene) R. J. Bayer
|rank=subspecies
}}
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Antennaria;Antennaria howellii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Gnaphalieae]]</div><div class="higher-taxon"><small>genus</small>[[Antennaria]]</div><div class="higher-taxon"><small>species</small>[[Antennaria howellii]]</div></div>
|volume=Volume 19
|mention_page=page 390, 395, 401, 402, 404, 405, 406
|treatment_page=page 403
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Gynoecious </b>(staminate plants very uncommon). <b>Plants</b> (6–)8–35 cm (stems sometimes stipitate-glandular). <b>Stolons</b> 1–9(–12) cm. <b>Basal</b> leaves 1-nerved, spatulate to oblanceolate, spatulate-obovate, narrowly to broadly ovate, or cuneate-oblanceolate, 20–48(–65) × 2.5–20 mm, tips mucronate, faces abaxially tomentose, adaxially green-glabrous or gray-pubescent. <b>Cauline</b> leaves linear, 8–40 mm, distal sometimes flagged (apices acute). <b>Heads</b> 3–15 in corymbiform arrays. <b>Involucres</b>: staminate 6–6.5 mm; pistillate 6–11 mm. <b>Phyllaries</b> (bases sometimes rose) distally white, cream, or light brown. <b>Corollas</b>: staminate 3–4 mm; pistillate 3.5–6.5(–8) mm. <b>Cypselae</b> 0.8–2 mm, ± papillate; pappi: staminate 4–4.5 mm; pistillate 5.5–9 mm. <b>2n</b> = 56, 84, 140 (under A. neodioica).</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Sask.;Yukon;Calif.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Mass.;Md.;Mich.;Minn.;Mont.;N.C.;N.Dak.;N.H.;N.J.;N.Y.;Nebr.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Utah;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.
|discussion=<p>Subspecies 4 (4 in the flora).</p><!--
--><p>The <i>Antennaria howellii</i> (previously A. neodioica) polyploid complex is highly variable morphologically; four more or less distinct subspecies can be recognized within it. The sexual progenitors of the complex are <i>A. neglecta</i>, <i>A. plantaginifolia</i>, <i>A. racemosa</i>, and <i>A. virginica</i> (see R. J. Bayer 1985). <i>Antennaria marginata</i> may also be a minor contributor to the origins of the complex. A. Cronquist (H. A. Gleason and Cronquist 1991) included members of this complex in <i>A. neglecta</i>; I maintain, because these apomicts are of hybrid polyploid origin from among multiple sexual progenitors, they best not be included within the circumscription of any one sexual progenitor (Bayer 1989d).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Basal leaves green-glabrous adaxially
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Basal leaves pubescent adaxially (sometimes glabrescent with age)
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Basal leaves 1-nerved, 20–40 × 6–9 mm; distal cauline leaves flagged; phyllaries distally white or cream
|[[Antennaria howellii subsp. canadensis|Antennaria howellii subsp. canadensis]]
|-id=key-0-2
|2
|Basal leaves 1–3-nerved, 25–40 × 9–12 mm; distal cauline leaves not flagged; phyllaries distally light brown or white
|[[Antennaria howellii subsp. howellii|Antennaria howellii subsp. howellii]]
|-id=key-0-3
|3
|Basal leaves spatulate to narrowly or broadly obovate (petiolate); stolons 3–8(–12) cm (leaves along stolons almost equal to those in rosettes at ends)
|[[Antennaria howellii subsp. neodioica|Antennaria howellii subsp. neodioica]]
|-id=key-0-3
|3
|Basal leaves cuneate-oblanceolate, spatulate, or spatulate-obovate (without distinct petioles); stolons 4–9 cm (leaves along stolons smaller than in rosettes at ends)
|[[Antennaria howellii subsp. petaloidea|Antennaria howellii subsp. petaloidea]]
|}
</div></div><!--

-->{{#Taxon:
name=Antennaria howellii
|authority=Greene
|rank=species
|parent rank=genus
|synonyms=Antennaria neglecta subsp. howellii;A. neglecta var. howellii;A. neodioica subsp. howellii
|basionyms=
|family=Asteraceae
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nfld. and Labr. (Nfld.);Ont.;P.E.I.;Que.;Sask.;Yukon;Calif.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Mass.;Md.;Mich.;Minn.;Mont.;N.C.;N.Dak.;N.H.;N.J.;N.Y.;Nebr.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Utah;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.
|reference=None
|publication title=Pittonia
|publication year=1897
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_648.xml
|tribe=Asteraceae tribe Gnaphalieae
|genus=Antennaria
|species=Antennaria howellii
}}<!--

-->[[Category:Treatment]][[Category:Antennaria]]