View source for Parthenium ligulatum

{{Treatment/ID
|accepted_name=Parthenium ligulatum
|accepted_authority=(M. E. Jones) Barneby
|publications={{Treatment/Publication
|title=Leafl. W. Bot.
|place=5: 20. 1947
|year=1947
}}
|basionyms={{Treatment/ID/Basionym
|name=Parthenium alpinum var. ligulatum
|authority=M. E. Jones
|rank=variety
|publication_title=Contr. W. Bot.
|publication_place=13: 16. 1910
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Parthenium;Parthenium ligulatum
|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>[[Parthenium]]</div><div class="higher-taxon"><small>species</small>[[Parthenium ligulatum]]</div></div>
|volume=Volume 21
|mention_page=page 20
|treatment_page=page 21
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 1–2 cm (underground caudices 2–5+ cm, branched; plants cespitose or forming mats). <b>Leaf</b> blades oblanceolate to spatulate, 5–18+ × 1–2(–4+) mm, margins entire, faces strigilloso-sericeous (gray) and obscurely gland-dotted. <b>Heads</b> radiate, borne singly. <b>Peduncles</b> 0–4 mm. <b>Phyllaries</b>: outer 5 ± ovate, 2.5–3 mm, inner 5 ± orbiculate, 3–4+ mm. <b>Pistillate</b> florets 5; corolla laminae oval to elliptic, 1–2 mm, retuse. <b>Disc</b> florets 15–25+. <b>Cypselae</b> oblanceoloid to pyriform, 3.5–4 mm; pappus-like enations 2, erect to spreading, ± subulate, 0.5–1 mm (a third, ± subulate element sometimes at apex of adaxial face). <b>2n</b> = 36, 72.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jun.
|habitat=Pale shale or sandstone outcrops with pinyon-juniper
|elevation=1800–2000 m
|distribution=Colo.;Utah.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Parthenium ligulatum
|authority=(M. E. Jones) Barneby
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Parthenium alpinum var. ligulatum
|family=Asteraceae
|phenology=Flowering May–Jun.
|habitat=Pale shale or sandstone outcrops with pinyon-juniper
|elevation=1800–2000 m
|distribution=Colo.;Utah.
|reference=None
|publication title=Leafl. W. Bot.
|publication year=1947
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_30.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae
|genus=Parthenium
|species=Parthenium ligulatum
}}<!--

-->[[Category:Treatment]][[Category:Parthenium]]