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-d0_s0" data-properties=""><b>Herbs,</b> perennial [unarmed or thorny shrubs], 1–8 [–40] dm;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism atypical some measurement;whole_organism some measurement;whole_organism architecture;whole_organism growth form">rhizomatous [taprooted].</span> <span class="statement" id="st-d0_s2" data-properties="stem quantity;stem orientation;stem pubescence"><b>Stems </b>1–10+, ascending to erect, glabrescent to loosely villous [glabrous].</span> <span class="statement" id="st-d0_s3" data-properties="leaf duration"><b>Leaves </b>deciduous [persistent], basal and/or cauline;</span> <span class="statement" id="st-d0_s4" data-properties="stipule duration;stipule fusion;margin fusion;margin shape;margin fusion;margin architecture or shape;margin architecture or shape">stipules persistent, adnate to petiole or free, lanceolate to ovate, margins entire or serrate;</span> <span class="statement" id="st-d0_s5" data-properties="petiole presence">petiole present;</span> <span class="statement" id="st-d0_s6" data-properties="blade shape;blade atypical some measurement;blade some measurement;blade growth form or texture;leaflet quantity;leaflet shape;leaflet shape;leaflet shape;leaflet shape;leaflet shape;margin shape;margin shape;margin shape;margin shape;margin shape;margin shape;surface pubescence;surface pubescence;hair architecture;hair shape;hair architecture">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.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence architecture;spike shape;spike pubescence;spike pubescence"><b>Inflorescences </b>terminal [or axillary] to distal leaves, [15–] 20–100+-flowered, headlike spikes, glabrous or sparsely [to densely] pubescent;</span> <span class="statement" id="st-d0_s8" data-properties="peduncle presence;peduncle presence">peduncles present, sometimes absent;</span> <span class="statement" id="st-d0_s9" data-properties="bract presence">bracts absent;</span> <span class="statement" id="st-d0_s10" data-properties="bracteole presence">bracteoles present.</span> <span class="statement" id="st-d0_s11" data-properties="pedicel presence"><b>Pedicels </b>absent.</span> <span class="statement" id="st-d0_s12" data-properties="flower reproduction;flower architecture;flower diameter;flower diameter"><b>Flowers </b>bisexual or pistillate (plants gynomonoecious [dioecious]), 2–4 [–5] mm diam.;</span> <span class="statement" id="st-d0_s13" data-properties="hypanthium condition or texture;hypanthium shape;hypanthium shape;hypanthium shape;hypanthium shape;hypanthium shape;hypanthium some measurement;hypanthium shape;hypanthium architecture;hypanthium relief;hypanthium coloration;hypanthium pubescence;hypanthium pubescence;flange architecture or course">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;</span> <span class="statement" id="st-d0_s14" data-properties="sepal quantity;sepal fusion;sepal orientation;sepal orientation;sepal orientation;sepal shape">sepals 4, distinct [basally connate], usually ascending or spreading, rarely slightly reflexed, ovate to elliptic;</span> <span class="statement" id="st-d0_s15" data-properties="petal presence">petals 0;</span> <span class="statement" id="st-d0_s16" data-properties="stamen atypical quantity;stamen quantity;stamen height or length or size;stamen length or size">stamens 0–30 (–50), shorter or longer than sepals;</span> <span class="statement" id="st-d0_s17" data-properties="carpel quantity;carpel pubescence;style architecture;style architecture or shape">carpels [1 or] 2 (or 3), glabrous, styles repeatedly branched, brushlike.</span> <span class="statement" id="st-d0_s18" data-properties="fruits achene quantity;fruits achene quantity;fruits achene shape;fruits achene diameter;fruits achene pubescence"><b>Fruits </b>achenes, 1 or 2 [or 3], ellipsoid, 1.5–2 mm diam., glabrous (though reticulate and muricate);</span> <span class="statement" id="st-d0_s19" data-properties="hypanthium duration">hypanthium persistent, enclosing achenes;</span> <span class="statement" id="st-d0_s20" data-properties="">sepals persistent, spreading to slightly ascending.</span> <span class="statement" id="st-d0_s21" data-properties="sepal duration;sepal orientation;x chromosome quantity">x = 7.</span><!--

-->{{Treatment/Body
|distribution=Europe (especially Mediterranean region);w Asia;n Africa;n Atlantic Islands (Macaronesia);also in s South America;Australia
|introduced=true
|discussion=<p>Species 13 (1 in the flora).</p><!--
--><p>Poterium 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. Sanguisorba.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#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);also in s South America;Australia
|introduced=true
|reference=None
|publication title=Sp. Pl.;Gen. Pl. ed.
|publication year=1753;1754
|special status=Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V9/V9_517.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Agrimonieae
|genus=Poterium
|blade atypical some measurement=15cm;35cm
|blade growth form or texture=herbaceous
|blade shape=oblanceolate;obovate
|blade some measurement=1cm;15cm
|bract presence=absent
|bracteole presence=absent
|carpel pubescence=glabrous
|carpel quantity=2
|flange architecture or course=irregular
|flower architecture=pistillate
|flower diameter=2mm;4mm
|flower reproduction=bisexual
|fruits achene diameter=1.5mm;2mm
|fruits achene pubescence=glabrous
|fruits achene quantity=2;1
|fruits achene shape=ellipsoid
|hair architecture=gland-tipped;unicellular;multicellular
|hair shape=acicular
|hypanthium architecture=winged
|hypanthium coloration=tan;brown
|hypanthium condition or texture=dry
|hypanthium duration=persistent
|hypanthium pubescence=glabrous;hairy
|hypanthium relief=ornamented
|hypanthium shape=angled;orbicular;ellipsoid;orbicular;ellipsoid;top--shaped
|hypanthium some measurement=2mm;9mm
|inflorescence architecture=[15-]20-100+-flowered
|leaf duration=deciduous
|leaflet quantity=2;12
|leaflet shape=obovate;orbiculate;obovate;orbiculate;elliptic
|margin architecture or shape=serrate;entire
|margin fusion=free;free
|margin shape=incised;serrate;incised;serrate;crenate;flat;lanceolate;ovate
|pedicel presence=absent
|peduncle presence=absent;absent
|petal presence=absent
|petiole presence=absent
|sepal duration=persistent
|sepal fusion=distinct
|sepal orientation=spreading;slightly ascending
|sepal quantity=4
|sepal shape=ovate;elliptic
|spike pubescence=pubescent;glabrous
|spike shape=headlike
|stamen atypical quantity=30;50
|stamen height or length or size=shorter
|stamen length or size=shorter or longer
|stamen quantity=0;30
|stem orientation=ascending;erect
|stem pubescence=glabrescent;loosely villous
|stem quantity=1;10
|stipule duration=persistent
|stipule fusion=adnate
|style architecture=branched
|style architecture or shape=brushlike
|surface pubescence=hairy;glabrous
|whole_organism architecture=rhizomatous
|whole_organism atypical some measurement=8dm;40dm
|whole_organism duration=perennial
|whole_organism growth form=herb
|whole_organism some measurement=1dm;8dm
|x chromosome quantity=7
}}<!--

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