View source for Sibbaldiopsis

{{Treatment/ID
|accepted_name=Sibbaldiopsis
|accepted_authority=Rydberg
|publications={{Treatment/Publication
|title=Monogr. N. Amer. Potentilleae,
|place=187, plate 100, figs. 6–10. 1898
|year=1898
}}
|special_status={{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Potentilla subg. Sibbaldiopsis
|authority=(Rydberg) B. Boivin
|rank=subgenus
}} {{Treatment/ID/Synonym
|name=Potentilla sect. Tridentatae
|authority=(Th. Wolf) Dikshit & Panigrahi
|rank=section
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Sibbaldiopsis
|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>[[Sibbaldiopsis]]</div></div>
|etymology=Genus Sibbaldia and Greek – opsis, resembling
|volume=Volume 9
|mention_page=page 120, 122, 124, 274, 298, 304
|treatment_page=page 299
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Subshrubs </b>to suffrutescent herbs, perennial, often ± matted, 0.2–3 dm, sparsely to moderately strigose to pilose; stoloniferous and rhizomatous (caudex diffusely branched). <b>Stems</b> 1–10+, ascending to erect, reddish. <b>Leaves</b> persistent, basal and proximally cauline [or evenly cauline], alternate, ternate; stipules persistent, basally adnate to petiole, sheathing, ovate, margins entire; petiole present; blade ± obovate [or broadly cordate] in outline, (0.5–)1–3(–4) cm, leathery, leaflets 3, oblanceolate to narrowly oblong, margins nearly flat to ± revolute, shallowly 3(–5)-toothed apically, venation pinnate, abaxial surface sparsely to moderately strigose to pilose, adaxial glabrous or sparsely strigose or pilose, rarely densely so. <b>Inflorescences</b> terminal, [1–]3–20-flowered, cymose, flat-topped; bracts present, reduced [or leafy]; bracteoles absent. <b>Pedicels</b> present, ± straight. <b>Flowers</b> 10–20[–30] mm diam.; epicalyx bractlets 5; hypanthium patelliform, 0.5–1.5[–2] × 3–5 mm, villous; sepals 5, spreading, broadly ovate; petals 5, white, sometimes pink-tinged [or yellow], elliptic-obovate [to orbiculate], longer than sepals; stamens 20(–30), shorter than petals, filaments filiform, not flattened, glabrous, anthers with theca horseshoe-shaped, rimming narrow to broad connective, dehiscing by a continuous, narrow, marginal slit; torus ± hemispheric; carpels 20–50, hairy, styles attached proximal to middle of achene to sub-basal, filiform; ovule 1. <b>Fruits</b> aggregated achenes, individually deciduous, obliquely ovoid, 1.2–1.5 mm, villous; hypanthium persistent; sepals persistent, erect; styles tardily deciduous, jointed. <b>x</b> = 7.</span><!--

-->{{Treatment/Body
|distribution=e North America;Asia.
|discussion=<p>Species 3 (1 in the flora).</p><!--
--><p>Rydberg based <i>Sibbaldiopsis</i> solely on the North American <i>S. tridentata</i>, which T. Wolf (1908) placed in his Grex Tridentatae with the Himalayan <i>Potentilla</i> ambigua Cambessèdes (not Gaudin) and P. miyabei Makino of Hokkaido and the Kurile Islands. Both Asian species have leafier stems and inflorescence bracts than the type species, as well as fewer flowers with broader yellow (versus white) petals. The treatment presented here provisionally follows that by J. Soják (2004, 2008, 2009b) with the inclusion of all three species in <i>Sibbaldiopsis</i>, using <i>S. cuneifolia</i> (Bertoloni) Soják and S. miyabei (Makino) Soják for the Asian species. More recently, however, J. Paule and J. Soják (2009) have proposed to include <i>Sibbaldiopsis</i> in <i>Sibbaldia</i>, since the species are intermingled in molecular phylogenies. Whether <i>S. tridentata</i> itself can be retained in a distinct monospecific genus remains to be determined.</p>
|tables=
|references={{Treatment/Reference
|id=paule2009a
|text=Paule, J. and J. Soják. 2009. Taxonomic comments on the genus Sibbaldiopsis Rydberg (Rosaceae). Čas. Nár. Muz., Rada Přír. 178(4): 15–16.
}}
}}<!--

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-->{{#Taxon:
name=Sibbaldiopsis
|author=Barbara Ertter;James L. Reveal
|authority=Rydberg
|rank=genus
|parent rank=tribe
|synonyms=Potentilla subg. Sibbaldiopsis;Potentilla sect. Tridentatae
|basionyms=
|family=Rosaceae
|distribution=e North America;Asia.
|reference=paule2009a
|publication title=Monogr. N. Amer. Potentilleae,
|publication year=1898
|special status=Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_485.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Sibbaldiopsis
}}<!--

-->[[Category:Treatment]][[Category:Rosaceae tribe Potentilleae]]