View source for Ageratina herbacea

{{Treatment/ID
|accepted_name=Ageratina herbacea
|accepted_authority=(A. Gray) R. M. King & H. Robinson
|publications={{Treatment/Publication
|title=Phytologia
|place=19: 222. 1970
|year=1970
}}
|common_names=Fragrant snakeroot
|basionyms={{Treatment/ID/Basionym
|name=Eupatorium ageratifolium var. herbaceum
|authority=A. Gray
|rank=variety
|publication_title=Smithsonian Contr. Knowl.
|publication_place=5(6): 74. 1853
}}
|synonyms={{Treatment/ID/Synonym
|name=Eupatorium herbaceum
|authority=(A. Gray) Greene
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Ageratina;Ageratina herbacea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Eupatorieae]]</div><div class="higher-taxon"><small>genus</small>[[Ageratina]]</div><div class="higher-taxon"><small>species</small>[[Ageratina herbacea]]</div></div>
|volume=Volume 21
|mention_page=page 548
|treatment_page=page 551
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>or subshrubs, (20–)30–60(–80) cm (woody crowns and woody rhizomes). <b>Stems</b> erect (brittle), minutely puberulent. <b>Leaves</b> opposite; petioles 10–25 mm; blades triangular to lanceolate-ovate or ovate, 2–5(–7) × 1.5–3.5(–4.5) cm, bases truncate to shallowly cordate, margins dentate to serrate-dentate, abaxial faces sparsely hispidulous to glabrate, eglandular. <b>Heads</b> clustered. <b>Peduncles</b> 4–15 mm, puberulent. <b>Involucres</b> 4–5 mm. <b>Phyllaries</b>: apices acute, abaxial faces granular-puberulent. <b>Corollas</b> white, glabrous. <b>Cypselae</b> finely strigose-hispidulous. <b>2n</b> = 34.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Jul–)Aug–Oct.
|habitat=Pine, pine-oak, juniper, and pinyon-juniper woodlands, rocks along streams, slopes, ridges, washes
|elevation=1400–2700(–2900) m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Mexico (Baja California;Chihuahua;Coahuila;Sonora).
|discussion=<p><i>Ageratina herbacea</i> is recognized by the distinctive color of its usually yellow-green, sometimes grayish, leaves, granular-puberulent involucres (with minute, thickened, eglandular hairs), and woody rhizomes.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Ageratina herbacea
|authority=(A. Gray) R. M. King & H. Robinson
|rank=species
|parent rank=genus
|synonyms=Eupatorium herbaceum
|basionyms=Eupatorium ageratifolium var. herbaceum
|family=Asteraceae
|phenology=Flowering (Jul–)Aug–Oct.
|habitat=Pine, pine-oak, juniper, and pinyon-juniper woodlands, rocks along streams, slopes, ridges, washes
|elevation=1400–2700(–2900) m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Mexico (Baja California;Chihuahua;Coahuila;Sonora).
|reference=None
|publication title=Phytologia
|publication year=1970
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_1398.xml
|tribe=Asteraceae tribe Eupatorieae
|genus=Ageratina
|species=Ageratina herbacea
}}<!--

-->[[Category:Treatment]][[Category:Ageratina]]