View source for Sibbaldia

{{Treatment/ID
|accepted_name=Sibbaldia
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 284. 1753
|year=1753
}}, {{Treatment/Publication
|title=Gen. Pl. ed.
|place=5, 137. 1754
|year=1754
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Potentilla sect. Sibbaldia
|authority=(Linnaeus) Hooker f.
}} {{Treatment/ID/Synonym
|name=Potentilla subg. Sibbaldia
|authority=(Linnaeus) Syme
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Sibbaldia
|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>[[Sibbaldia]]</div></div>
|etymology=For Robert Sibbald, 1642–1722, professor of medicine at Edinburgh
|volume=Volume 9
|mention_page=page 120, 274, 298, 299, 304
|treatment_page=page 297
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, [0.1–]0.2–1.5(–2)[–3] dm, [subglabrous or] sparsely strigose to subappressed pilose [to densely tomentose or sericeous]; horizontal rootstocks branched, compact, woody. <b>Stems</b> 1–10+, prostrate to ascending [or erect], green to reddish. <b>Leaves</b> deciduous or marcescent, mostly basal, alternate, ternate [or simple]; stipules persistent, basally adnate to petiole, sheathing, lanceolate to ovate, margins entire; petiole present; blade bluntly ovate to obovate [or cordate] in outline, 1–3[–4] cm, foliaceous, leaflets 3, cuneate or oblanceolate to broadly elliptic or obovate to nearly orbiculate, margins flat, shallowly (2–)3(–5)[–7]-toothed apically, central tooth usually shorter than others, venation pinnate, surfaces often more densely strigose on veins and margins, sometimes glabrous. <b>Inflorescences</b> terminal, (1–)3–12-flowered, loosely capitate or corymbose (or flowers solitary); bracts present, reduced; bracteoles absent. <b>Pedicels</b> present, straight or curved. <b>Flowers</b> 4–7[–10] mm diam.; epicalyx bractlets 5; hypanthium shallowly cupulate, 0.5–2 × 2–4[–5] mm, usually strigose, sometimes glabrous; sepals 5, spreading, broadly lanceolate to ovate; petals 5, ± yellow, oblanceolate [to obovate], shorter [to slightly longer] than sepals; stamens 5[rarely 10], shorter than petals, filaments columnar, glabrous, anthers with theca solitary, ± horseshoe-shaped, rimming an indistinct connective, dehiscing by continuous marginal slit; torus hemispheric; carpels 5–15[–30], glabrous, styles lateral, narrowly clavate; ovule 1. <b>Fruits</b> aggregated achenes, individually deciduous, 5–15[–30], obliquely ovoid, 1.2–1.7 mm, glabrous; hypanthium persistent; sepals persistent, erect; styles tardily deciduous, jointed. <b>x</b> = 7.</span><!--

-->{{Treatment/Body
|distribution=North America;c Mexico;Eurasia.
|discussion=<p>Species 6 (1 in the flora).</p><!--
--><p>When not included within <i>Potentilla</i>, <i>Sibbaldia</i> has been circumscribed to include 20 or more species, centered in the Himalayas (B. K. Dikshit and G. Panigrahi 1981; Li C. L. et al. 2003). This broad circumscription is not supported by molecular analyses (T. Eriksson et al. 1998, 2003; M. Lundberg et al. 2009; C. Dobeš and J. Paule 2010), in which <i>S. procumbens</i> (lectotype of the genus), <i>S. cuneata</i> Hornemann ex Kunze, <i>S. parviflora</i> Willdenow, and S. semiglabra C. A. Meyer form a clade in the Fragariinae; most other species nest within <i>Potentilla</i>. These molecular results coincide with morphological features emphasized by J. Soják (1985[1989], 2008), that is, each anther bearing a single horseshoe-shaped theca versus more typical paired thecae, and lateral versus subterminal attachment of narrowly clavate styles.</p><!--
--><p>This citation of six species in <i>Sibbaldia</i> follows J. Soják (2008, pers. comm.), largely coinciding with sect. Eusibbaldia by O. A. Muravjeva (1936). Included are the four species mentioned above plus S. aphanopetala Handel-Mazzetti and S. trullifolia (Hooker f.) Chatterjee. The last is an enigmatic, simple-leaved species that is known only from the type; it has not been included in molecular analyses. More recently, Soják (2012) has proposed treating S. aphanopetala, <i>S. parviflora</i>, and S. semiglabra as subspecies of <i>S. procumbens</i>, but without validly publishing the corresponding combinations. The three species of <i>Sibbaldiopsis</i> have also been included in <i>Sibbaldia</i> (J. Paule and Soják 2009; Soják 2012), but too late for full incorporation in the current treatment. All other species traditionally placed in <i>Sibbaldia</i> are relegated to Argentina Hill, Piletophyllum (Soják) Soják, <i>Potentilla</i> in the strict sense, or Sibbaldianthe Juzepczuk.</p>
|tables=
|references={{Treatment/Reference
|id=muravjeva1936a
|text=Muravjeva, O. A. 1936. The genus Sibbaldia L. and its species. Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Sist. Vyssh. Rast. 2: 217–241.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Sibbaldia
|author=Barbara Ertter;James L. Reveal
|authority=Linnaeus
|rank=genus
|parent rank=tribe
|synonyms=Potentilla sect. Sibbaldia;Potentilla subg. Sibbaldia
|basionyms=
|family=Rosaceae
|distribution=North America;c Mexico;Eurasia.
|reference=muravjeva1936a
|publication title=Sp. Pl.;Gen. Pl. ed.
|publication year=1753;1754
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V9/V9_483.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Sibbaldia
}}<!--

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