View source for Poterium

{{Treatment/ID
|accepted_name=Poterium
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 994. 1753
|year=1753
}}, {{Treatment/Publication
|title=Gen. Pl. ed.
|place=5, 430. 1754
|year=1754
}}
|common_names=Salad burnet
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Agrimonieae;Poterium
|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 Agrimonieae]]</div><div class="higher-taxon"><small>genus</small>[[Poterium]]</div></div>
|etymology=Greek poterion, goblet or cup, presumably alluding to shape of hypanthium
|volume=Volume 9
|mention_page=page 312, 319, 321
|treatment_page=page 318
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial [unarmed or thorny shrubs], 1–8[–40] dm; rhizomatous [taprooted]. <b>Stems</b> 1–10+, ascending to erect, glabrescent to loosely villous [glabrous]. <b>Leaves</b> deciduous [persistent], basal and/or cauline; stipules persistent, adnate to petiole or free, lanceolate to ovate, margins entire or serrate; petiole present; blade oblanceolate to obovate [or elliptic], 1–15[–35] cm, herbaceous [subcoriaceous], leaflets 2–12 pairs, elliptic, orbiculate, or obovate, margins flat, crenate, serrate, or incised, surfaces glabrous or hairy hairs unicellular to multicellular, acicular and/or gland-tipped. <b>Inflorescences</b> terminal [or axillary] to distal leaves, [15–]20–100+-flowered, headlike spikes, glabrous or sparsely [to densely] pubescent; peduncles present, sometimes absent; bracts absent; bracteoles present. <b>Pedicels</b> absent. <b>Flowers</b> bisexual or pistillate (plants gynomonoecious [dioecious]), 2–4[–5] mm diam.; hypanthium dry [fleshy, spongy], top-shaped, ellipsoid, or nearly orbicular, 2–9 mm, angled, winged, and/or ornamented with irregular flanges and papillae, tan to brown, hairy or glabrous; sepals 4, distinct [basally connate], usually ascending or spreading, rarely slightly reflexed, ovate to elliptic; petals 0; stamens 0–30(–50), shorter or longer than sepals; carpels [1 or]2(or 3), glabrous, styles repeatedly branched, brushlike. <b>Fruits</b> achenes, 1 or 2[or 3], ellipsoid, 1.5–2 mm diam., glabrous (though reticulate and muricate); hypanthium persistent, enclosing achenes; sepals persistent, spreading to slightly ascending. <b>x</b> = 7.</span><!--

-->{{Treatment/Body
|distribution=Europe (especially Mediterranean region);w Asia;n Africa;n Atlantic Islands (Macaronesia);introduced also in s South America;Australia.
|introduced=true
|discussion=<p>Species 13 (1 in the flora).</p><!--
--><p><i>Poterium</i> is here circumscribed to include Bencomia Webb & Berthelot, Dendriopoterium Sventenius (all of Macaronesia), Marcetella Sventenius, and Sarcopoterium Spach (of the eastern Mediterranean) based on molecular phylogenetic analyses summarized by D. Potter et al. (2007). The inclusion of these woody Mediterranean and Macaronesian endemics significantly increases the morphological diversity in the genus; see also 25. <i>Sanguisorba</i>.</p>
|tables=
|references={{Treatment/Reference
|id=nordborg1967a
|text=Nordborg, G. 1967. The genus Sanguisorba section Poterium: Experimental studies and taxonomy. Opera Bot. 16: 1–166.
}}
}}<!--

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-->{{#Taxon:
name=Poterium
|author=Alan S. Weakley
|authority=Linnaeus
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Rosaceae
|distribution=Europe (especially Mediterranean region);w Asia;n Africa;n Atlantic Islands (Macaronesia);introduced also in s South America;Australia.
|introduced=true
|reference=nordborg1967a
|publication title=Sp. Pl.;Gen. Pl. ed.
|publication year=1753;1754
|special status=Introduced
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_517.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Agrimonieae
|genus=Poterium
}}<!--

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