View source for Amelanchier interior

{{Treatment/ID
|accepted_name=Amelanchier interior
|accepted_authority=E. L. Nielsen
|publications={{Treatment/Publication
|title=Amer. Midl. Naturalist
|place=22: 185, plate 13. 1939
|year=1939
}}
|common_names=Wiegand’s shadbush;amélanchier de l'intérieur
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Amelanchier wiegandii
|authority=E. L. Nielsen
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Amelanchier;Amelanchier interior
|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 Gillenieae]]</div><div class="higher-taxon"><small>genus</small>[[Amelanchier]]</div><div class="higher-taxon"><small>species</small>[[Amelanchier interior]]</div></div>
|volume=Volume 9
|mention_page=page 649, 658, 661
|treatment_page=page 655
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, 1–10 m. <b>Stems</b> 1–10, forming colonies or solitary. <b>Leaves</b> not fully unfolded; petiole 10–30 mm; blade broadly ovate to elliptic, 30–70 × 20–50 mm, base rounded to subcordate, each margin with 3–15 teeth on proximal 1/2 and (2–)4 or 5(–7) teeth in distalmost cm, largest teeth less than 1 mm, apex short acuminate to apiculate, abaxial surface glabrous or sparsely hairy by flowering, surfaces glabrous later. <b>Inflorescences</b> 4–12-flowered, 30–75 mm. <b>Pedicels</b>: 1 or 2 subtended by a leaf, proximalmost 10–45 mm. <b>Flowers</b>: sepals recurved after flowering, 2–5 mm; petals obovate, 6–15 × 4–5 mm; stamens 20; styles 5, 3–5 mm; ovary apex densely (moderately) hairy (or glabrous). <b>Pomes</b> purple-black, 6–8 mm diam. <b>2n</b> = 4x.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jun; fruiting Jul–Aug.
|habitat=Dry woods, bluffs rocky areas and slopes, stream banks, fields, thickets, and sandy areas, sometimes wetlands
|elevation=0–300 m
|distribution=N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Ill.;Iowa;Mich.;Minn.;Ohio;S.Dak.;Wis.
|discussion=<p><i>Amelanchier interior</i> is distinguished by its capacity to grow into a tree to ten meters and by having sparsely hairy young leaves that are often reddish and densely hairy ovary apices. E. L. Nielsen (1939) differentiated <i>A. interior</i> and A. wiegandii on the basis of leaves being carinate in A. wiegandii as opposed to flat in <i>A. interior</i>, and leaf sinuses rounded versus acute. G. N. Jones (1946) considered those differences to be slight, and he included A. wiegandii in <i>A. interior</i>. The authors follow Jones, but retain the common name Wiegand’s shadbush to commemorate Wiegand’s early insights about the taxonomy of <i>Amelanchier</i>. M. L. Fernald (1950) considered A. wiegandii as suggesting a small-leaved <i>A. laevis</i> but with shorter buds, fewer teeth, fewer veins, and summit of ovary heavily tomentose. P. Landry (1975) thought A. wiegandii to be the hybrid of <i>A. arborea</i> and <i>A. sanguinea</i>, and E. G. Voss (1972–1996, vol. 2) reasoned that <i>A. interior</i> is a hybrid swarm involving <i>A. laevis</i> (or sometimes <i>A. arborea</i>) and plants of the <i>A. spicata</i> and/or <i>A. sanguinea</i> complex. A hybrid origin of <i>A. interior</i> from <i>A. laevis</i> and <i>A. sanguinea</i> is reasonable given that stem height, the number of leaf teeth, and petal length are more or less intermediate between those two species. DNA sequences from ITS region indicate that <i>A. interior</i> (A. wiegandii) is a possible later-generation hybrid involving a member of the western North American ITS clade (which also includes <i>A. humilis</i> and <i>A. sanguinea</i> of eastern North America) and some eastern North American taxon (C. S. Campbell et al. 1997). Multiple hybrid origins, possibly from different species, may explain the variability of <i>A. interior</i>. <i>Amelanchier interior</i> has unusually large ranges of lengths for proximal pedicels, sepals, and petals. The leaves of A. wiegandii were described by Nielsen as bronze at flowering; Jones described the leaves of <i>A. interior</i> as green when young. The authors assume that <i>A. interior</i> as they interpret it is polymorphic for the color of young leaves.</p>
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-->{{#Taxon:
name=Amelanchier interior
|author=
|authority=E. L. Nielsen
|rank=species
|parent rank=genus
|synonyms=Amelanchier wiegandii
|basionyms=
|family=Rosaceae
|phenology=Flowering May–Jun; fruiting Jul–Aug.
|habitat=Dry woods, bluffs rocky areas and slopes, stream banks, fields, thickets, and sandy areas, sometimes wetlands
|elevation=0–300 m
|distribution=N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Ill.;Iowa;Mich.;Minn.;Ohio;S.Dak.;Wis.
|reference=None
|publication title=Amer. Midl. Naturalist
|publication year=1939
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V9/V9_1126.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Amelanchier
|species=Amelanchier interior
}}<!--

-->[[Category:Treatment]][[Category:Amelanchier]]