View source for Heliopsis

{{Treatment/ID
|accepted_name=Heliopsis
|accepted_authority=Persoon
|publications={{Treatment/Publication
|title=Syn. Pl.
|place=2: 473. 1807
|year=1807
}}
|common_names=Oxeye;sunflower everlasting;héliopside
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Heliopsis
|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 Ecliptinae]]</div><div class="higher-taxon"><small>genus</small>[[Heliopsis]]</div></div>
|etymology=Greek helios, sun, and - opsis, likeness
|volume=Volume 21
|mention_page=page 64, 65, 68
|treatment_page=page 67
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>[annuals], 30–150 cm. <b>Stems</b> erect or trailing, branched from bases or ± throughout. <b>Leaves</b> cauline; opposite; petiolate; blades ± 3-nerved from bases, deltate or ovate to lanceolate, bases ± cuneate to subtruncate, margins serrate or coarsely toothed, faces glabrous or hairy. <b>Heads</b> radiate [discoid], borne singly. <b>Involucres</b> turbinate to hemispheric, 8–14 mm diam. <b>Phyllaries</b> persistent, 12–20 in 2–3 series (ovate or oblong, ± equal, outer more foliaceous than inner). <b>Receptacles</b> convex to conic, paleate (paleae tardily falling, yellowish, conduplicate, becoming chartaceous). <b>Ray</b> florets [0] 5–20, pistillate, fertile; corollas yellow to orange (laminae persistent, sessile, becoming papery). <b>Disc</b> florets 30–150+, bisexual, fertile; corollas yellow or brown to purple, tubes much shorter than narrowly cylindric throats, lobes 5, deltate. <b>Cypselae</b> (brown to black-brown) subterete or obscurely 3(ray)- or 4(disc)-angled (not winged); pappi 0, or persistent, coroniform (each a laciniate crown plus 1–3 toothlike scales). <b>x</b> = 14.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;Central America;South America (to Bolivia).
|discussion=<p>Species ca. 18 (3 in the flora).</p><!--
--><p>Most species of <i>Heliopsis</i> are known only from Mexico.</p>
|tables=
|references={{Treatment/Reference
|id=fisher1957a
|text=Fisher, T. R. 1957. Taxonomy of the genus Heliopsis (Compositae). Ohio J. Sci. 57: 171–191.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Aerial stems 1–2+ (from creeping rhizomes 4–10+ cm × 1–2 mm, rhizome internodes ca. 20+ mm); heads 1–3(–5); rays 6–8(–13)
|[[Heliopsis gracilis|Heliopsis gracilis]]
|-id=key-0-1
|1
|Aerial stems 1–10+ (from ± erect caudices, or from creeping rhizomes to 4 cm × 2–6 mm, rhizome internodes 2–10 mm); heads 1–15+; rays 9–18
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaf blades (1.5–)3–6 × 0.8–3 cm, faces sparsely pubescent to glabrescent; peduncles (6–)15–30 cm; cypselae rugulose to subtuberculate
|[[Heliopsis parvifolia|Heliopsis parvifolia]]
|-id=key-0-2
|2
|Leaf blades 6–12(–15) × 2.5–6(–12) cm, faces glabrous, pubescent, or scabrous; peduncles 9–25 cm; cypselae smooth
|[[Heliopsis helianthoides|Heliopsis helianthoides]]
|}
</div></div><!--

-->{{#Taxon:
name=Heliopsis
|author=Alan R. Smith
|authority=Persoon
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Marjorie C. Leggitt
|illustration copyright=Flora of North America Association
|distribution=North America;Mexico;Central America;South America (to Bolivia).
|reference=fisher1957a
|publication title=Syn. Pl.
|publication year=1807
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_145.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae
|genus=Heliopsis
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Ecliptinae]]