View source for Galinsoga

{{Treatment/ID
|accepted_name=Galinsoga
|accepted_authority=Ruiz & Pavón
|publications={{Treatment/Publication
|title=Fl. Peruv. Prodr.,
|place=110, plate 24. 1794
|year=1794
}}
|common_names=Quickweed
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Galinsoginae;Galinsoga
|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 Galinsoginae]]</div><div class="higher-taxon"><small>genus</small>[[Galinsoga]]</div></div>
|etymology=For Mariano Martínez de Galinsoga, 1766–1797, court physician and director of the Botanic Garden, Madrid
|volume=Volume 21
|mention_page=page 6, 177, 181
|treatment_page=page 180
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 2–62 cm. <b>Stems</b> erect. <b>Leaves</b> cauline; opposite; petiolate; blades (3-nerved) lanceolate to broadly ovate, margins entire or serrulate to serrate, faces glabrate to densely pilose. <b>Heads</b> radiate or discoid, in ± cymiform arrays. <b>Involucres</b> hemispheric to campanulate, 2.5–6 mm diam. <b>Phyllaries</b> persistent or falling, 6–9[–16] in 2[–3] series (elliptic, lance-ovate, oblong, or ovate, outer shorter, herbaceous or scarious, margins entire or minutely laciniate). <b>Receptacles</b> conic, paleate (paleae persistent or falling, scarious, proximal broadly elliptic to obovate, often connate at bases or nearly to apices, united in groups of 2–3 to adjacent proximal phyllary, each complex often enclosing and shed with a ray cypsela; distal persistent or falling, lanceolate to obovate, entire or 2- or 3-lobed, convex to conduplicate). <b>Ray</b> florets [0–](3–)5(–8)[–15], pistillate, fertile; corollas white or dull white to pinkish [purplish] (tubes pilose, laminae quadrate-obovate to oblong, lobes 0–3). <b>Disc</b> florets 5–50[–150], bisexual, fertile; corollas yellow, tubes (pilose) shorter than cylindric throats, lobes 5, deltate (anthers yellow; style-branch apices acute). <b>Cypselae</b> obconic to obpyramidal, glabrous or strigose (rays often shed with subtending phyllary plus 2–3 adjacent paleae); pappi 0, or persistent, of 5–20, white or gray, fimbriate, sometimes aristate scales. <b>x</b> = 8.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;West Indies;Bermuda;Central America;South America;introduced in Europe;Asia;Africa;Atlantic Islands;Pacific Islands;Australia.
|discussion=<p>Species 15–33+ (2 in the flora).</p><!--
--><p><i>Galinsoga</i> is closely related to Sabazia Cassini of Mexico and South America and to at least some members of Alloispermum Willdenow, primarily from South America. <i>Galinsoga</i> might best be treated as a single larger genus including Alloispermum and Sabazia (J. M. Canne 1978; J. L. Panero et al. 1999).</p>
|tables=
|references={{Treatment/Reference
|id=canne1977a
|text=Canne, J. M. 1977. A revision of the genus Galinsoga (Compositae: Heliantheae). Rhodora 79: 319–389.
}}{{Treatment/Reference
|id=canne1978a
|text=Canne, J. M. 1978. Circumscription and generic relationships of Galinsoga (Compositae: Heliantheae). Madroño 25: 81–93.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Phyllaries persistent; inner paleae 3-lobed, lobes 1/3+ total lengths, acute; disc pappi 0, or of 15–20 often gray, sometimes white, linear, fimbriate, obtuse scales 0.5–2 mm
|[[Galinsoga parviflora|Galinsoga parviflora]]
|-id=key-0-1
|1
|Phyllaries falling; inner paleae entire or 2- or 3-lobed, lobes to 1/3 total lengths, blunt; disc pappi 0, or of 1–5 or 14–20 white, lanceolate to oblanceolate, fimbriate, sometimes aristate, scales
|[[Galinsoga quadriradiata|Galinsoga quadriradiata]]
|}
</div></div><!--

-->{{#Taxon:
name=Galinsoga
|author=Judith M. Canne-Hilliker
|authority=Ruiz & Pavón
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=North America;Mexico;West Indies;Bermuda;Central America;South America;introduced in Europe;Asia;Africa;Atlantic Islands;Pacific Islands;Australia.
|reference=canne1977a;canne1978a
|publication title=Fl. Peruv. Prodr.,
|publication year=1794
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_442.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Galinsoginae
|genus=Galinsoga
}}<!--

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