View source for Ambrosia ambrosioides

{{Treatment/ID
|accepted_name=Ambrosia ambrosioides
|accepted_authority=(Delpino) W. W. Payne
|publications={{Treatment/Publication
|title=J. Arnold Arbor.
|place=45: 410. 1964
|year=1964
}}
|basionyms={{Treatment/ID/Basionym
|name=Xanthidium ambrosioides
|authority=Delpino
|rank=species
|publication_title=Studi Lign. Anemof.
|publication_place=63 (1871)
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Ambrosia;Ambrosia ambrosioides
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Ambrosiinae]]</div><div class="higher-taxon"><small>genus</small>[[Ambrosia]]</div><div class="higher-taxon"><small>species</small>[[Ambrosia ambrosioides]]</div></div>
|volume=Volume 21
|mention_page=page 10, 13
|treatment_page=page 12
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Shrubs,</b> 60–150+ cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation"><b>Stems </b>erect.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement"><b>Leaves </b>mostly alternate;</span> <span class="statement" id="st-d0_s3" data-properties="petiole some measurement">petioles 10–35 mm;</span> <span class="statement" id="st-d0_s4" data-properties="blade shape;blade length;blade width;base shape;margin shape;abaxial and adaxial face pubescence">blades lanceolate to narrowly triangular, 50–150+ × 18–55+ mm, bases truncate to cordate, margins coarsely toothed (not spiny), abaxial and adaxial faces ± hirsutulous and glanddotted.</span> <span class="statement" id="st-d0_s5" data-properties="head architecture;head arrangement or growth form;head position"><b>Pistillate </b>heads clustered on lateral axes, proximal to staminates;</span> <span class="statement" id="st-d0_s6" data-properties="floret quantity">florets 4–5.</span> <span class="statement" id="st-d0_s7" data-properties="head architecture;peduncle atypical some measurement;peduncle some measurement"><b>Staminate </b>heads: peduncles 2–4 (–12) mm;</span> <span class="statement" id="st-d0_s8" data-properties="head architecture;involucre shape;involucre diameter;involucre pubescence">involucres ± saucer-shaped, 4–6+ mm diam., ± hirsutulous;</span> <span class="statement" id="st-d0_s9" data-properties="head architecture;floret quantity">florets 40–60+.</span> <span class="statement" id="st-d0_s10" data-properties="body shape;body some measurement;body pubescence;spine quantity;spine arrangement;spine shape;spine some measurement"><b>Burs:</b> bodies ± fusiform, 6–8+ mm, stipitate-glandular, spines 60–80+, scattered, subulate, 4–6 mm, tips uncinate.</span> <span class="statement" id="st-d0_s11" data-properties="tip shape;2n chromosome quantity">2n = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–May.
|habitat=Sandy soils, washes, banks
|elevation=(100–)500–1000+ m
|distribution=Ariz.;Calif.;Mexico (Baja California);Mexico (Baja California Sur);Mexico (Chihuahua);Mexico (Durango);Mexico (Sonora)
|discussion=<p>Ambrosia ambrosioides has been reported from California; it may occur there.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ambrosia ambrosioides
|authority=(Delpino) W. W. Payne
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Xanthidium ambrosioides
|family=Asteraceae
|phenology=Flowering Mar–May.
|habitat=Sandy soils, washes, banks
|elevation=(100–)500–1000+ m
|distribution=Ariz.;Calif.;Mexico (Baja California);Mexico (Baja California Sur);Mexico (Chihuahua);Mexico (Durango);Mexico (Sonora)
|reference=None
|publication title=J. Arnold Arbor.
|publication year=1964
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_7.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
|genus=Ambrosia
|species=Ambrosia ambrosioides
|2n chromosome quantity=36
|abaxial and adaxial face pubescence=hirsutulous
|base shape=truncate;cordate
|blade length=50mm;150mm
|blade shape=lanceolate;narrowly triangular
|blade width=18mm;55mm
|body pubescence=stipitate-glandular
|body shape=fusiform
|body some measurement=6mm;8mm
|floret quantity=40;60
|head architecture=staminate;staminate;staminate;pistillate
|head arrangement or growth form=clustered
|head position=proximal
|involucre diameter=4mm;6mm
|involucre pubescence=hirsutulous
|involucre shape=saucer--shaped
|leaf arrangement=alternate
|margin shape=toothed
|peduncle atypical some measurement=4mm;12mm
|peduncle some measurement=2mm;4mm
|petiole some measurement=10mm;35mm
|spine arrangement=scattered
|spine quantity=60;80
|spine shape=subulate
|spine some measurement=4mm;6mm
|stem orientation=erect
|tip shape=uncinate
|whole_organism growth form=shrub
|whole_organism some measurement=60cm;150cm
}}<!--

-->[[Category:Treatment]][[Category:Ambrosia]]