View source for Prunus padus

{{Treatment/ID
|accepted_name=Prunus padus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 473. 1753
|year=1753
}}
|common_names=European bird cherry
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Amygdaleae;Prunus;Prunus padus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Amygdaleae]]</div><div class="higher-taxon"><small>genus</small>[[Prunus]]</div><div class="higher-taxon"><small>species</small>[[Prunus padus]]</div></div>
|volume=Volume 9
|mention_page=page 355
|treatment_page=page 366
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> not suckering, 50–150 dm, not thorny. <b>Twigs</b> with terminal end buds, glabrous or puberulent. <b>Leaves</b> deciduous; petiole 8–17 mm, glabrous or puberulent on adaxial surface or both surfaces, glandular distally, glands 1–4; blade elliptic to obovate, 5–10(–13) × 2.5–4.5(–7) cm, base obtuse to rounded or subcordate, margins serrate, teeth ascending to spreading, sharp, eglandular, apex acuminate to abruptly so, lateral veins 10–18 per side, raised abaxially, surfaces glabrous or abaxial hairy in vein axils or along midribs. <b>Inflorescences</b> 15–50-flowered, racemes; central axes 45–150 mm, leafy at bases. <b>Pedicels</b> 3–17 mm, glabrous. <b>Flowers</b> blooming after leaf emergence; hypanthium cupulate, 2–2.5 mm, glabrous externally; sepals broadly spreading to reflexed, oblong-ovate, 1.2–2 mm (lengths greater than widths), margins glandular-toothed, surfaces glabrous; petals white, obovate to suborbiculate, (5–)6–9 mm; ovaries glabrous. <b>Drupes</b> black, globose, 6–8 mm, glabrous; hypanthium deciduous, leaving discs at bases of drupes; mesocarps fleshy; stones subglobose, not flattened, rugulose. <b>2n</b> = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–May; fruiting Jul–Aug.
|habitat=Disturbed sites
|elevation=0–1700 m
|distribution=N.B.;Ont.;Alaska;Del.;Ill.;Mont.;N.J.;N.Y.;Pa.;Utah;Wash.;Eurasia;n Africa.
|introduced=true
|discussion=<p><i>Prunus padus</i> is cultivated in North America as an ornamental prized for its long, showy racemes of white flowers and its cold hardiness. Its value in the upper Midwest is often compromised by fungal infection causing black knot disease.</p><!--
--><p><i>Prunus padus</i> is difficult to distinguish from <i>P. virginiana </i>var.<i> demissa</i>, at least from herbarium material. Induments of hypanthium interior have been widely used in keys to separate the two: hairy in <i>P. padus</i> versus glabrous in <i>P. virginiana</i>. As noted by E. G. Voss (1972–1996, vol. 2), many of the specimens of <i>P. virginiana</i> have a pubescent hypanthium, especially basally. This is true throughout the range of <i>P. virginiana</i>, and also for some specimens of <i>P. serotina</i>. The hypanthia of <i>P. padus</i> are more hairy than those of <i>P. virginiana</i>. The petals of <i>P. padus</i> are longer than those of eastern chokecherry (<i>P. virginiana </i>var.<i> virginiana</i>), making it possible to distinguish flowering specimens from east of the Rocky Mountains. The petals are only slightly longer, on average, than those of <i>P. virginiana </i>var.<i> demissa</i>. Petals of <i>P. padus</i> are also a bit narrower and more elliptic. Shape of sepals may prove useful: 1.2–2 mm with lengths greater than widths in <i>P. padus</i> versus 0.7–1.4 mm with lengths equal to widths in <i>P. virginiana </i>var.<i> demissa</i>. In fruit, the difference between rugulose stones of <i>P. padus</i> and smooth stones of <i>P. virginiana</i> is subtle, perhaps too subtle for those unfamiliar with the range in variation of pit surfaces among these taxa.</p>
|tables=
|references=
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-->{{#Taxon:
name=Prunus padus
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Rosaceae
|phenology=Flowering Apr–May; fruiting Jul–Aug.
|habitat=Disturbed sites
|elevation=0–1700 m
|distribution=N.B.;Ont.;Alaska;Del.;Ill.;Mont.;N.J.;N.Y.;Pa.;Utah;Wash.;Eurasia;n Africa.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_596.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Amygdaleae
|genus=Prunus
|species=Prunus padus
}}<!--

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