View source for Potentilla brunnescens

{{Treatment/ID
|accepted_name=Potentilla brunnescens
|accepted_authority=Rydberg
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=28: 173. 1901
|year=1901
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Potentilla gracilis var. brunnescens
|authority=(Rydberg) C. L. Hitchcock
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Potentilla;Potentilla sect. Graciles;Potentilla brunnescens
|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>[[Potentilla]]</div><div class="higher-taxon"><small>section</small>[[Potentilla sect. Graciles]]</div><div class="higher-taxon"><small>species</small>[[Potentilla brunnescens]]</div></div>
|volume=Volume 9
|mention_page=page 152, 158
|treatment_page=page 157
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Glands </b>conspicuous, usually golden. <b>Stems</b> ascending to nearly erect, (1.5–)3–7 dm. <b>Basal</b> leaves sometimes 2-ranked, palmate, (5–)10–30 cm; petiole (1.5–)5–25(–50) cm, long hairs sparse to abundant, appressed to spreading, 1–2 mm, ± stiff, short, crisped, and cottony hairs absent, glands ± abundant; leaflets (5–)7–9, at tip of leaf axis, separate to slightly overlapping, largest ones oblanceolate-elliptic to narrowly obovate, (2–)5–10 × 1–4 cm, margins flat to ± revolute, distal 3/4 to nearly whole length ± evenly incised (1/4–)1/2–3/4+ to midvein, undivided medial blade 2–15(–20) mm wide, teeth (5–)7–10 per side, linear to broadly lanceolate, 3–15 mm, surfaces ± similar, abaxial paler, green, not glaucous, long hairs sparse to common, short-crisped hairs absent or sparse, cottony hairs absent, glands ± abundant. <b>Cauline</b> leaves 1–3(–4). <b>Inflorescences</b> 12–30(–70)-flowered. <b>Pedicels</b> 0.2–1(–4) cm. <b>Flowers</b>: epicalyx bractlets lanceolate to elliptic, 3–6 × 1–2 mm, hairs sparse to common, loosely appressed to spreading, glands common to abundant; hypanthium 4–6(–8) mm diam.; sepals 4–8(–9) mm, apex acute to acuminate; petals 6–9 × 6–10 mm; filaments 1–2 mm, anthers 0.6–1 mm; carpels 30–60, styles filiform-tapered, papillate-swollen proximally, 1.5–2 mm. <b>Achenes</b> 1.5 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer.
|habitat=Vernally moist rocky flats, sagebrush benchlands and slopes, usually basaltic
|elevation=400–3100 m
|distribution=Alaska;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>The conspicuous golden glands, dark green color, and relatively broad leaflets make <i>Potentilla brunnescens</i> one of the better-defined species of sect. Graciles, though it has often been treated as a variety of <i>P. gracilis</i>. The glands, which are often on septate stalks, are particularly conspicuous on the epicalyx bractlets, hypanthium, and sepals, and at the junction of petiole and leaflets. The species occurs from the Blue Mountains of Oregon and Washington to western Montana, northern Utah, and north-central Colorado; collections from Alaska are probably not native.</p><!--
--><p>As presented here, <i>Potentilla brunnescens</i> encompasses two morphological extremes that might merit varietal status. Leaflets of the more common and widespread extreme are incised about halfway to the midvein; in contrast, some populations in western Wyoming and adjacent Idaho have leaflets incised 3/4 or more to the midvein. The latter have often been assigned to <i>P. gracilis </i>var.<i> elmeri</i> while reserving <i>P. gracilis</i> var. brunnescens for the former; this is untenable because the type of <i>P. brunnescens</i> is the latter form.</p>
|tables=
|references=
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-->{{#Taxon:
name=Potentilla brunnescens
|author=
|authority=Rydberg
|rank=species
|parent rank=section
|synonyms=Potentilla gracilis var. brunnescens
|basionyms=
|family=Rosaceae
|phenology=Flowering summer.
|habitat=Vernally moist rocky flats, sagebrush benchlands and slopes, usually basaltic
|elevation=400–3100 m
|distribution=Alaska;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1901
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V9/V9_230.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Potentilla
|section=Potentilla sect. Graciles
|species=Potentilla brunnescens
}}<!--

-->[[Category:Treatment]][[Category:Potentilla sect. Graciles]]