View source for Rosaceae tribe Potentilleae

{{Treatment/ID
|accepted_name=Rosaceae tribe Potentilleae
|accepted_authority=Sweet
|publications={{Treatment/Publication
|title=Brit. Fl. Gard.
|place=2: sub plate 124. 1825
|year=1825
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae
|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>
|volume=Volume 9
|mention_page=page 22, 23, 120, 122, 301
|treatment_page=page 119
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, rarely annual or biennial, shrubs, or subshrubs; unarmed. <b>Leaves</b> alternate, rarely opposite, pinnately (palmately) compound (simple in <i>Alchemilla</i>, <i>Aphanes</i>, and <i>Chamaerhodos</i>); stipules persistent (absent in <i>Chamaerhodos</i>), adnate to petiole; venation pinnate or palmate. <b>Flowers</b>: perianth and androecium perigynous; epicalyx bractlets present, sometimes absent; hypanthium usually patelliform, cupulate, or campanulate, sometimes turbinate, saucer-shaped, flat-bottomed, or subglobose to ellipsoid or ovoid; torus flat to conic or turbinate, enlarged (absent or reduced in <i>Alchemilla</i>, <i>Aphanes</i>, and <i>Chamaerhodos</i>); carpels 1–260, styles basal or lateral to subterminal, distinct; ovules 1(or 2), basal. <b>Fruits</b> aggregated achenes (achenes in <i>Alchemilla</i> and <i>Aphanes</i>); torus sometimes fleshy; styles deciduous or persistent, not elongate.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;West Indies;Bermuda;Central America;South America;Eurasia;Africa;Atlantic Islands;Pacific Islands;Australia.
|discussion=<p>Genera 14–22, species ca. 860 (14 genera, 189 species, including 1 hybrid, in the flora area).</p><!--
--><p>The base chromosome number for Potentilleae is mostly x = 7 (8 in <i>Alchemilla</i> and <i>Aphanes</i>; 14 in <i>Comarum</i>).</p><!--
--><p>Variation in the number of genera recognized in Potentilleae is due to differences in generic delimitation between D. Potter et al. (2007) and the authors of <i>Potentilla</i> and segregates here (see 9. <i>Ivesia</i> and 8. <i>Potentilla</i> for discussion). In the former, <i>Duchesnea</i>, <i>Horkelia</i>, <i>Horkeliella</i>, and <i>Ivesia</i> are included within <i>Potentilla</i>. Likewise, <i>Aphanes</i> is included within <i>Alchemilla</i> by Potter et al. while it is kept distinct here.</p><!--
--><p><i>Potentilla</i> and its segregates and <i>Fragaria</i> are host to Phragmidium rusts, but not the other genera of the tribe.</p>
|tables=
|references={{Treatment/Reference
|id=keck1938a
|text=Keck, D. D. 1938[1939]. Revision of Horkelia and Ivesia. Lloydia 1: 75–142.
}}{{Treatment/Reference
|id=rydberg1898a
|text=Rydberg, P. A. 1898. A Monograph of the North American Potentilleae. New York. [Mem. Dept. Bot. Columbia Coll. 2.]
}}{{Treatment/Reference
|id=sojak2008a
|text=Soják, J. 2008. Notes on Potentilla XXI. A new division of the tribe Potentilleae (Rosaceae) and notes on generic delimitations. Bot. Jahrb. Syst. 127: 349–358.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Shrubs; leaf lobe margins entire; achenes hirsute.
|[[Dasiphora|Dasiphora]]
|-id=key-0-1
|1
|Herbs, perennial, sometimes annual or biennial, or subshrubs; leaf lobe margins or apices ± toothed, sometimes entire; achenes glabrous (sometimes ± hairy)
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Petals 0, sepals 4; achenes 1, enclosed in dry, urceolate or subglobose to ellipsoid or ovoid hypanthia
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Petals and sepals usually 5; achenes 1–260, usually aggregated (sometimes on elongating tori), usually in (± open) patelliform, cupulate, campanulate, or turbinate hypanthia (not enclosed in dry hypanthium)
|[[#key-0-4| > 4]]
|-id=key-0-3
|3
|Herbs perennial; leaves basal, blades reniform to orbiculate, palmately lobed, sometimes palmately compound; stamens 4.
|[[Alchemilla|Alchemilla]]
|-id=key-0-3
|3
|Herbs annual; leaves cauline, blades cuneate, deeply divided into segments, each lobed; stamen 1(or 2).
|[[Aphanes|Aphanes]]
|-id=key-0-4
|4
|Leaves all or mostly basal or proximal (if cauline, deeply pinnatifid), ternate or 2–4-ternate (sometimes simple and coarsely toothed apically in Sibbaldia)
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Leaves basal or cauline, the latter usually reduced distally, odd-pinnate to palmate, rarely ternate or ± bipinnate
|[[#key-0-9| > 9]]
|-id=key-0-5
|5
|Tori becoming red and fleshy in fruit; leaf margins serrate to crenate
|[[#key-0-6| > 6]]
|-id=key-0-5
|5
|Tori hemispheric (not enlarged or fleshy) in fruit or absent; leaf margins entire or (2–)3(–5)-toothed apically
|[[#key-0-7| > 7]]
|-id=key-0-6
|6
|Leaves ± doubly serrate or crenate; stolons leafy; inflorescences: flowers solitary, axillary at stolon nodes; petals yellow.
|[[Duchesnea|Duchesnea]]
|-id=key-0-6
|6
|Leaves serrate to crenate; stolons not leafy; inflorescences 1–10-flowered, cymes, axillary from leaf rosettes; petals usually white.
|[[Fragaria|Fragaria]]
|-id=key-0-7
|7
|Leaves pinnately compound or simple and deeply pinnatifid, margins entire, stipules absent.
|[[Chamaerhodos|Chamaerhodos]]
|-id=key-0-7
|7
|Leaves ternate, margins toothed apically, stipules persistent
|[[#key-0-8| > 8]]
|-id=key-0-8
|8
|Petals ± yellow; stamens 5.
|[[Sibbaldia|Sibbaldia]]
|-id=key-0-8
|8
|Petals usually white; stamens 20(–30).
|[[Sibbaldiopsis|Sibbaldiopsis]]
|-id=key-0-9
|9
|Petals deep red to purple, rarely pink, shorter than sepals; tori enlarged and spongy at maturity; horizontal stems sometimes floating, wetland habitats.
|[[Comarum|Comarum]]
|-id=key-0-9
|9
|Petals yellow to white, rarely pink or red (then equal to or longer than sepals); tori not enlarged and spongy at maturity; stems erect to decumbent, not horizontal or floating even if in wetlands
|[[#key-0-10| > 10]]
|-id=key-0-10
|10
|Anthers dehiscing by continuous marginal slit (with a single theca); styles sub-basal.
|[[Drymocallis|Drymocallis]]
|-id=key-0-10
|10
|Anthers dehiscing longitudinally; styles subterminal to lateral
|[[#key-0-11| > 11]]
|-id=key-0-11
|11
|Hypanthium patelliform to campanulate or cupulate to turbinate (not flat-bottomed); filaments not forming tube; petals white to yellow, sometimes reddish or pink tinged
|[[#key-0-12| > 12]]
|-id=key-0-11
|11
|Hypanthium ± cupulate or bluntly campanulate and flat-bottomed; filaments forming tube; petals usually white, sometimes pink-tinged, rose-veined, or cream
|[[#key-0-13| > 13]]
|-id=key-0-12
|12
|Plants not aromatic; leaves ± cordate or reniform to narrowly elliptic in outline, leaflets 3–15(–41); petals oblanceolate or obovate to obcordate to nearly round, rarely elliptic; carpels 3–260.
|[[Potentilla|Potentilla]]
|-id=key-0-12
|12
|Plants often aromatic; leaves planar to cylindric, leaflets (3–)7–161; petals linear or narrowly oblanceolate to obovate, sometimes obcordate; carpels 1–20(–40).
|[[Ivesia|Ivesia]]
|-id=key-0-13
|13
|Stamens 10; leaflets (3–)5–41.
|[[Horkelia|Horkelia]]
|-id=key-0-13
|13
|Stamens 20; leaflets 30–70.
|[[Horkeliella|Horkeliella]]
|}
</div></div><!--

-->{{#Taxon:
name=Rosaceae tribe Potentilleae
|author=Luc Brouillet
|authority=Sweet
|rank=tribe
|parent rank=subfamily
|synonyms=
|basionyms=
|family=Rosaceae
|distribution=North America;Mexico;West Indies;Bermuda;Central America;South America;Eurasia;Africa;Atlantic Islands;Pacific Islands;Australia.
|reference=keck1938a;rydberg1898a;sojak2008a
|publication title=Brit. Fl. Gard.
|publication year=1825
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_178.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
}}<!--

-->[[Category:Treatment]][[Category:Rosaceae subfam. Rosoideae]]