View source for Ivesia tweedyi

{{Treatment/ID
|accepted_name=Ivesia tweedyi
|accepted_authority=Rydberg
|publications={{Treatment/Publication
|title=in N. L. Britton et al., N. Amer. Fl.
|place=22: 288. 1908
|year=1908
}}
|common_names=Tweedy’s ivesia
|special_status={{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Potentilla tweedyi
|authority=(Rydberg) J. T. Howell
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Ivesia;Ivesia sect. Ivesia;Ivesia tweedyi
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Rosoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Potentilleae]]</div><div class="higher-taxon"><small>genus</small>[[Ivesia]]</div><div class="higher-taxon"><small>section</small>[[Ivesia sect. Ivesia]]</div><div class="higher-taxon"><small>species</small>[[Ivesia tweedyi]]</div></div>
|volume=Volume 9
|mention_page=page 230, 231, 236
|treatment_page=page 235
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>green, ± rosetted to tufted; taproot stout, not fleshy. <b>Stems</b> ascending to erect, 0.4–2(–3.5) dm. <b>Basal</b> leaves loosely cylindric, (3–)4–12(–17) cm; sheathing base glabrous abaxially; petiole 0.5–7 cm, hairs 1–1.5 mm; leaflets 10–16 per side, 4–7(–10) mm, glabrous or sparsely hirsute, glandular-puberulent or -pubescent, lobes (2–)5–15, linear to narrowly oblanceolate, apex not setose. <b>Cauline</b> leaves (0–)1–2, not paired. <b>Inflorescences</b> (5–)10–25(–35)-flowered, (1–)1.5–3(–4.5) cm diam.; glomerules 1–few. <b>Pedicels</b> 1–3(–5) mm. <b>Flowers</b> 9–12 mm diam.; epicalyx bractlets linear, 1–2 mm; hypanthium shallowly campanulate, 1–1.5 × 2–4(–5.5) mm; sepals 2–3.5 mm, acute; petals golden yellow, broadly elliptic to spatulate, 2.5–3.3 mm; stamens 5, filaments 1–1.7 mm, anthers yellow, 0.5–0.8 mm; carpels (2–)4–6(–9), styles 2–3 mm. <b>Achenes</b> olive green, 1.8–2 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer.
|habitat=Dry, gravelly to rocky flats, slopes, alpine ridges, often on serpentine, in subalpine conifer woodlands
|elevation=1600–2300 m
|distribution=Idaho;Mont.;Wash.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Ivesia tweedyi</i> is found from the Cascade Range in Washington to Boundary and Shoshone counties in Idaho, barely entering Montana in Mineral County.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ivesia tweedyi
|authority=Rydberg
|rank=species
|parent rank=section
|synonyms=Potentilla tweedyi
|basionyms=
|family=Rosaceae
|phenology=Flowering summer.
|habitat=Dry, gravelly to rocky flats, slopes, alpine ridges, often on serpentine, in subalpine conifer woodlands
|elevation=1600–2300 m
|distribution=Idaho;Mont.;Wash.
|reference=None
|publication title=in N. L. Britton et al., N. Amer. Fl.
|publication year=1908
|special status=Conservation concern;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_362.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Ivesia
|section=Ivesia sect. Ivesia
|species=Ivesia tweedyi
}}<!--

-->[[Category:Treatment]][[Category:Ivesia sect. Ivesia]]