View source for Drymocallis hansenii

{{Treatment/ID
|accepted_name=Drymocallis hansenii
|accepted_authority=(Greene) Rydberg
|publications={{Treatment/Publication
|title=Monogr. N. Amer. Potentilleae,
|place=200. 1898
|year=1898
}}
|common_names=Hansen’s drymocallis or wood beauty
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Potentilla hansenii
|authority=Greene
|publication_title=Pittonia
|publication_place=3: 20. 1896 (as hanseni)
}}
|synonyms={{Treatment/ID/Synonym
|name=Drymocallis glandulosa subsp. hansenii
|authority=(Greene) Soják
}} {{Treatment/ID/Synonym
|name=P. glandulosa subsp. hansenii
|authority=(Greene) D. D. Keck
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Drymocallis;Drymocallis hansenii
|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>[[Drymocallis]]</div><div class="higher-taxon"><small>species</small>[[Drymocallis hansenii]]</div></div>
|volume=Volume 9
|mention_page=page 282, 283
|treatment_page=page 287
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Caudex </b>branches short to elongate. <b>Stems</b> usually solitary, sometimes loosely tufted, (3–)4–9 dm; base (1–)2–4 mm diam., moderately to densely septate-glandular. <b>Leaves</b> sparsely to moderately hairy; basal (7–)10–25(–30) cm, leaflet pairs 3–4; terminal leaflet broadly obovate, 2–5(–6) × 1.5–3.5(–4) cm, teeth single or double, 6–11 per side, apex usually rounded, sometimes obtuse; cauline 1–3, proximally well developed, leaflet pairs 2–4. <b>Inflorescences</b> 10–20(–40)-flowered, not leafy, open, 1/4–2/3 of stem, narrow, branch angles 10–30°. <b>Pedicels</b> 2–8 (proximal to 20) mm, predominantly short-hairy, sparsely to moderately septate-glandular. <b>Flowers</b> opening widely; epicalyx bractlets linear to narrowly elliptic, 2–4 × 0.5–1 mm; sepals spreading, 5–8 mm, apex acute to acuminate; petals overlapping or not, spreading, cream-white to pale yellow, broadly obovate, 4–6 × 3–6 mm, usually longer than, sometimes equal to, sepals; filaments 1.5–2.5(–3) mm, anthers 0.8–1 mm; styles thickened, 0.8–1.2 mm. <b>Achenes</b> light brown, 0.7–1 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Sep.
|habitat=Moist ground, meadows, open forests, streamsides
|elevation=1200–1900(–2200) m
|distribution=Calif.
|discussion=<p>D. D. Keck (in J. Clausen et al. 1940) speculated that <i>Drymocallis hansenii</i> was the stabilized recombinant of <i>D. glandulosa </i>var.<i> reflexa</i> and <i>D. lactea</i>. Alternatively, it may represent the California counterpart of <i>D. convallaria</i>, because it tends to have tall, thick-based, single stems and narrow inflorescences. The species is centered in the west-central Sierra <i>Nevada</i> of California, usually occurring in moist meadows and equivalent habitats. Plants near Lake Tahoe, which provide the high-elevation extreme, combine the smaller stature of <i>D. lactea</i> and the glandular-septate stem bases of <i>D. hansenii</i>; their optimal taxonomic disposition is uncertain.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Drymocallis hansenii
|author=
|authority=(Greene) Rydberg
|rank=species
|parent rank=genus
|synonyms=Drymocallis glandulosa subsp. hansenii;P. glandulosa subsp. hansenii
|basionyms=Potentilla hansenii
|family=Rosaceae
|phenology=Flowering Jun–Sep.
|habitat=Moist ground, meadows, open forests, streamsides
|elevation=1200–1900(–2200) m
|distribution=Calif.
|reference=None
|publication title=Monogr. N. Amer. Potentilleae,
|publication year=1898
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V9/V9_460.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Drymocallis
|species=Drymocallis hansenii
}}<!--

-->[[Category:Treatment]][[Category:Drymocallis]]