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-d0_s0" data-properties="tree some measurement"><b>Trees,</b> to 30 m;</span> <span class="statement" id="st-d0_s1" data-properties="trunk quantity;crown orientation">trunks often several, crowns spreading.</span> <span class="statement" id="st-d0_s2" data-properties="bark coloration;bark architecture or pubescence or relief;bark coloration;plate depth;plate orientation"><b>Bark </b>dark gray, smooth, becoming blackish and breaking into shallow vertical plates in age;</span> <span class="statement" id="st-d0_s3" data-properties="lenticel prominence">lenticels inconspicuous.</span> <span class="statement" id="st-d0_s4" data-properties="bud season;bud architecture;bud shape;bud some measurement;apex shape"><b>Winter </b>buds stipitate, ovoid, 4–8 mm, apex rounded;</span> <span class="statement" id="st-d0_s5" data-properties="stalk some measurement">stalks 1.5–4 mm;</span> <span class="statement" id="st-d0_s6" data-properties="scale quantity;scale variability;scale arrangement or dehiscence;scale coating">scales 2, equal, valvate, sometimes incompletely covering underlying leaves, moderately resin-coated.</span> <span class="statement" id="st-d0_s7" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade length;leaf-blade width;leaf-blade texture;base shape;base shape;margin prominence or shape;margin architecture or shape;margin architecture or shape;tooth size;tooth shape;tooth shape;secondary tooth size;apex length or size;apex shape;apex shape"><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;</span> <span class="statement" id="st-d0_s8" data-properties="surface pubescence;surface pubescence;surface pubescence;surface pubescence;surface coating">surfaces abaxially glabrous to sparsely pubescent or infrequently villous, moderately resin-coated.</span> <span class="statement" id="st-d0_s9" data-properties="inflorescence prominence"><b>Inflorescences </b>formed season before flowering and exposed during winter;</span> <span class="statement" id="st-d0_s10" data-properties="catkin architecture;catkin some measurement">staminate catkins in 1 or more clusters of 3–6, 3.5–10 cm;</span> <span class="statement" id="st-d0_s11" data-properties="">pistillate catkins in 1 or more clusters of 2–7.</span> <span class="statement" id="st-d0_s12" data-properties="catkin architecture;catkin life cycle;growth life cycle"><b>Flowering </b>before new growth in spring.</span> <span class="statement" id="st-d0_s13" data-properties="infructescence shape;infructescence shape;infructescence shape;infructescence shape;infructescence shape;infructescence length;infructescence width"><b>Infructescences </b>ovoid, ellipsoid, or nearly cylindric, 1–2.5 × 0.8–1.5 cm;</span> <span class="statement" id="st-d0_s14" data-properties="peduncle some measurement">peduncles 5–10 mm.</span> <span class="statement" id="st-d0_s15" data-properties="samara shape;samara shape;samara shape;wing width;wing shape;wing texture"><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>Alnus oblongifolia 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=
}}<!--

--><!--

-->{{#Taxon:
name=Alnus oblongifolia
|author=
|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://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_1070.xml
|subfamily=Betulaceae subfam. Betuloideae
|genus=Alnus
|species=Alnus oblongifolia
|apex length or size=long
|apex shape=acute;short-acuminate;rounded
|bark architecture or pubescence or relief=smooth
|bark coloration=blackish;dark gray
|base shape=rounded;cuneate
|bud architecture=stipitate
|bud season=winter
|bud shape=ovoid
|bud some measurement=4mm;8mm
|catkin architecture=pistillate;staminate
|catkin life cycle=flowering
|catkin some measurement=3.5cm;10cm
|crown orientation=spreading
|growth life cycle=new
|inflorescence prominence=exposed
|infructescence length=1cm;2.5cm
|infructescence shape=cylindric;ellipsoid;cylindric;ellipsoid;ovoid
|infructescence width=0.8cm;1.5cm
|leaf-blade length=5cm;9cm
|leaf-blade shape=lanceolate;narrowly elliptic
|leaf-blade texture=leathery
|leaf-blade width=3cm;6cm
|lenticel prominence=inconspicuous
|margin architecture or shape=short-serrate;serrate
|margin prominence or shape=flat
|peduncle some measurement=5mm;10mm
|plate depth=shallow
|plate orientation=vertical
|samara shape=elliptic;obovate
|scale arrangement or dehiscence=valvate
|scale coating=resin-coated
|scale quantity=2
|scale variability=equal
|secondary tooth size=larger
|stalk some measurement=1.5mm;4mm
|surface coating=resin-coated
|surface pubescence=abaxially glabrous;sparsely pubescent or infrequently villous
|tooth shape=acuminate;sharp
|tooth size=major
|tree some measurement=0m;30m
|trunk quantity=several
|wing shape=irregular
|wing texture=leathery
|wing width=narrower
}}<!--

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