View source for Horkelia bolanderi

{{Treatment/ID
|accepted_name=Horkelia bolanderi
|accepted_authority=A. Gray
|publications={{Treatment/Publication
|title=Proc. Amer. Acad. Arts
|place=7: 338. 1868
|year=1868
}}
|common_names=Bolander’s horkelia
|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 bolanderi
|authority=(A. Gray) Greene
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Horkelia;Horkelia sect. Horkelia;Horkelia bolanderi
|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>[[Horkelia]]</div><div class="higher-taxon"><small>section</small>[[Horkelia sect. Horkelia]]</div><div class="higher-taxon"><small>species</small>[[Horkelia bolanderi]]</div></div>
|volume=Volume 9
|mention_page=page 252
|treatment_page=page 251
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>openly matted, grayish. <b>Stems</b> ascending to erect, 1–3(–4.5) dm, hairs ascending to appressed. <b>Basal</b> leaves ± planar, 3–8(–9) × 0.7–1.5 cm; stipules entire; leaflets 6–9 per side, separate to ± overlapping at least distally, ± cuneate to obovate, 4–10 × 2–7 mm, 1/2 to nearly as wide as long, divided 1/3 to midrib into 3–6 acute, sometimes obtuse, teeth, densely strigulose, often villous marginally or at least apically. <b>Cauline</b> leaves (2 or)3–6. <b>Inflorescences</b> ± congested to open, most flowers arranged in glomerules. <b>Pedicels</b> (1–)2–4(–6) mm. <b>Flowers</b> 10 mm diam.; epicalyx bractlets elliptic-lanceolate, (1.5–)1.8–3 × 0.5–1 mm, ± 2/3 length of sepals, entire; hypanthium 1–1.5 × 2–4 mm, less than 1/2 as deep as wide, interior slightly pilose; sepals spreading to ± reflexed, lanceolate, (2.5–)3–4 mm; petals oblong to oblanceolate, 3–5.5 × 1.5–2 mm, apex rounded to slightly emarginate; filaments 0.5–2 × 0.3–0.4 mm, anthers (0.4–)0.5–0.8 mm; carpels 10–20(–27); styles (1–)1.5–2 mm. <b>Achenes</b> brown to dark brown, 1–1.3 mm, usually faintly roughened.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer.
|habitat=Edges of vernal lakes, meadows, seeps, in grasslands, conifer woodlands
|elevation=400–1100 m
|distribution=Calif.
|discussion=<p>Of conservation concern.</p><!--
--><p>W. L. Jepson ([1923–1925]) and P. A. Munz and I. M. Johnston (1925) independently adopted an expanded circumscription of <i>Potentilla</i> bolanderi that included four species of <i>Horkelia</i> recognized by P. A. Rydberg (1908c): H. bernardina, <i>H. bolanderi</i>, <i>H. clevelandii</i>, and <i>H. rydbergii</i>. These were treated as three varieties, which D. D. Keck (1938) converted to subspecies as <i>H. bolanderi</i> <i></i></i>subsp.<i><i> bolanderi</i>, <i></i></i>subsp.<i><i> clevelandii</i>, and <i></i></i>subsp.<i><i> parryi</i>, the last encompassing H. bernardina and <i>H. rydbergii</i>. These subspecies were restored to species rank by B. Ertter (1993c) as <i>H. bolanderi</i>, <i>H. clevelandii</i>, and <i>H. rydbergii</i>, along with the establishment of <i>H. yadonii</i> to accommodate populations from Monterey County assigned to <i></i></i>subsp.<i><i> parryi</i> by Keck.</p><!--
--><p>As now circumscribed, <i>Horkelia bolanderi</i> is known from five locations in the northern Coast Ranges in Colusa, Lake, and Mendocino counties; records from more southerly localities would be referenced to one of the segregate species discussed above.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Horkelia bolanderi
|author=
|authority=A. Gray
|rank=species
|parent rank=section
|synonyms=Potentilla bolanderi
|basionyms=
|family=Rosaceae
|phenology=Flowering summer.
|habitat=Edges of vernal lakes, meadows, seeps, in grasslands, conifer woodlands
|elevation=400–1100 m
|distribution=Calif.
|reference=None
|publication title=Proc. Amer. Acad. Arts
|publication year=1868
|special status=Conservation concern;Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V9/V9_392.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Horkelia
|section=Horkelia sect. Horkelia
|species=Horkelia bolanderi
}}<!--

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