View source for Alnus oblongifolia

{{Treatment/ID
|accepted_name=Alnus oblongifolia
|accepted_authority=Torrey in W. H. Emory
|publications={{Treatment/Publication
|title=in W. H. Emory, Rep. U.S. Mex. Bound.
|place=2: 204. 1859
|year=1859
}}
|common_names=Arizona alder;New Mexican alder;aliso (Mexico)
|basionyms=
|synonyms=
|hierarchy=Betulaceae;Betulaceae subfam. Betuloideae;Alnus;Alnus oblongifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Betulaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Betulaceae subfam. Betuloideae]]</div><div class="higher-taxon"><small>genus</small>[[Alnus]]</div><div class="higher-taxon"><small>species</small>[[Alnus oblongifolia]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> to 30 m; trunks often several, crowns spreading. <b>Bark</b> dark gray, smooth, becoming blackish and breaking into shallow vertical plates in age; lenticels inconspicuous. <b>Winter</b> buds stipitate, ovoid, 4–8 mm, apex rounded; stalks 1.5–4 mm; scales 2, equal, valvate, sometimes incompletely covering underlying leaves, moderately resin-coated. <b>Leaf</b> blade narrowly ovate or lanceolate to narrowly elliptic, 5–9 × 3–6 cm, leathery, base narrowly to broadly cuneate or narrowly rounded, margins flat, sharply and coarsely doubly serrate, rarely evenly and densely short-serrate, major teeth sharp, acuminate, secondary teeth distinctly larger, apex long to short-acuminate, rarely acute; surfaces abaxially glabrous to sparsely pubescent or infrequently villous, moderately resin-coated. <b>Inflorescences</b> formed season before flowering and exposed during winter; staminate catkins in 1 or more clusters of 3–6, 3.5–10 cm; pistillate catkins in 1 or more clusters of 2–7. <b>Flowering</b> before new growth in spring. <b>Infructescences</b> ovoid, ellipsoid, or nearly cylindric, 1–2.5 × 0.8–1.5 cm; peduncles 5–10 mm. <b>Samaras</b> elliptic to obovate, wings narrower than body, irregular in shape, leathery.</span><!--

-->{{Treatment/Body
|phenology=Flowering early spring.
|habitat=Sandy or rocky stream banks and moist slopes, often in mountain canyons
|elevation=1000–2300 m
|distribution=Ariz.;N.Mex.;Mexico (n Chihuahua and n Sonora).
|discussion=<p><i>Alnus oblongifolia</i> is closely related to the Mexican and Central American A. acuminata, with which it has sometimes been confused. It is found only in scattered populations in the temperate deciduous forest vegetation zone of high mountains in the arid Southwest.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Alnus oblongifolia
|authority=Torrey in W. H. Emory
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Betulaceae
|phenology=Flowering early spring.
|habitat=Sandy or rocky stream banks and moist slopes, often in mountain canyons
|elevation=1000–2300 m
|distribution=Ariz.;N.Mex.;Mexico (n Chihuahua and n Sonora).
|reference=None
|publication title=in W. H. Emory, Rep. U.S. Mex. Bound.
|publication year=1859
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V3/V3_1070.xml
|subfamily=Betulaceae subfam. Betuloideae
|genus=Alnus
|species=Alnus oblongifolia
}}<!--

-->[[Category:Treatment]][[Category:Alnus]]