View source for Helianthus ciliaris

{{Treatment/ID
|accepted_name=Helianthus ciliaris
|accepted_authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|place=5: 587. 1836
|year=1836
}}
|common_names=Blueweed;blueweed sunflower;Texas blueweed
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Helianthinae;Helianthus;Helianthus ciliaris
|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 Helianthinae]]</div><div class="higher-taxon"><small>genus</small>[[Helianthus]]</div><div class="higher-taxon"><small>species</small>[[Helianthus ciliaris]]</div></div>
|volume=Volume 21
|mention_page=page 144, 168
|treatment_page=page 169
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 40–70 cm (rhizomatous or with creeping roots, often forming extensive colonies). <b>Stems</b> decumbent to ± erect, glabrous or glabrate (glaucous). <b>Leaves</b> cauline; mostly opposite; sessile; blades (often bluish green, 1- or 3-nerved) linear to lanceolate, 3–7.5 × 0.5–2.2 cm, bases ± cuneate, margins entire or serrate (usually ciliate and undulate), faces glabrous or glabrate to hispid. <b>Heads</b> 1–5. <b>Peduncles</b> (1–)3–13 cm. <b>Involucres</b> hemispheric, 12–25 mm diam. <b>Phyllaries</b> 16–19, ovate to lance-ovate, 3–8 × 2–3.5 mm, (margins ciliate) apices obtuse to acute, abaxial faces glabrate to ± strigose, not gland-dotted. <b>Paleae</b> 7–7.5 mm, subentire to 3-toothed (apices obtuse to acute, hairy, gland-dotted). <b>Ray</b> florets 10–18; laminae 8–9 mm. <b>Disc</b> florets 35+; corollas 4–6 mm, lobes reddish; anthers brownish red, appendages brownish red (style branches yellow). <b>Cypselae</b> 3–3.5 mm, glabrous; pappi of 2 aristate scales 1.2–1.5 mm. <b>2n</b> = 68, 102.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Roadsides, ditches, cultivated fields, open drainage areas
|elevation=10–2600 m
|distribution=Ariz.;Calif.;Colo.;Ill.;Kans.;Nebr.;Nev.;N.Mex.;Okla.;Tex.;Utah;Mexico (Chihuahua;Coahuila;Durango;San Luis Potosí;Sonora;Tamaulipas).
|discussion=<p><i>Helianthus ciliaris</i> is considered a noxious weed in some states. It can propagate vegetatively from detached pieces of rhizome and spread aggressively, especially in cultivated fields. It has been noted to occur in Idaho and Washington, where control measures have been taken to eliminate it.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Helianthus ciliaris
|author=
|authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer–fall.
|habitat=Roadsides, ditches, cultivated fields, open drainage areas
|elevation=10–2600 m
|distribution=Ariz.;Calif.;Colo.;Ill.;Kans.;Nebr.;Nev.;N.Mex.;Okla.;Tex.;Utah;Mexico (Chihuahua;Coahuila;Durango;San Luis Potosí;Sonora;Tamaulipas).
|reference=None
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication year=1836
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_412.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae
|genus=Helianthus
|species=Helianthus ciliaris
}}<!--

-->[[Category:Treatment]][[Category:Helianthus]]