Amphilophium crucigerum

{{Short description|Species of flowering plant}} {{Use dmy dates|cs1-dates=ly|date=March 2022}} {{Speciesbox | image = Amphilophium crucigerum (9268776437).jpg | taxon = Amphilophium crucigerum | authority = (L.) L.G.Lohmann<ref name=POWO_77100444-1/> | synonyms = {{Species list |Anisostichus crucigera|(L.) Small |Bignonia botryoides|Cham. |Bignonia catharinae|DC. |Bignonia crucigera|L. |Bignonia echinata|Aubl. |Bignonia echinata|Jacq. |Bignonia hexagona|DC. |Bignonia lundii|DC. |Bignonia muricata|DC. |Bignonia phaseoloides|Cham. |Bignonia squalus|Vell. |Bignonia tiliifolia|Kunth |Bignonia vitalba|Cham. |Neves-armondia cordifolia|(Mart.) K.Schum. |Petastoma phaseoloides|(Cham.) Miers |Pithecoctenium aubletii|Splitg. |Pithecoctenium botryoides|(Cham.) DC. |Pithecoctenium catharinae|DC. |Pithecoctenium cordifolium|Mart. |Pithecoctenium crucigerum|(L.) A.H.Gentry |Pithecoctenium echinatum|(Jacq.) Baill. |Pithecoctenium glaucum|Rusby |Pithecoctenium hexagonum|DC. |Pithecoctenium lundii|DC. |Pithecoctenium muricatum|Moc. ex DC. |Pithecoctenium phaseoloides|(Cham.) Schenck |Pithecoctenium squalus|(Vell.) DC. |Pithecoctenium tribrachiatum|Loes. |Pithecoctenium vitalba|(Cham.) DC. }} | synonyms_ref = <ref name=POWO_77100444-1/> }}

'''''Amphilophium crucigerum''''' is a species of flowering plant in the family Bignoniaceae, native from Mexico through Central America into South America as far south as Argentina.<ref name=POWO_77100444-1/> It was first described by Carl Linnaeus (as ''Bignonia crucigera'') in 1753.<ref name=IPNI_77100444-1/> The synonym '''''Pithecoctenium crucigerum''''' has often been used.<ref name=POWO_77100444-1/>

The species has become an invasive weed in Australia.<ref>{{Cite web|url=http://www.backyardnature.net/mexnat/monkcomb.htm|title = Monkey-comb, PITHECOCTENIUM CRUCIGERUM}}</ref> Chemical investigation of methanol extracted from this species yielded the iridoid glycoside theviridoside along with five phenylethanoid glycosides (verbascoside, isoverbascoside, forsythoside B, jionoside D and leucosceptoside B), these last all active against DPPH.<ref>{{cite journal|pmid=17382978 | doi=10.1016/j.phytochem.2007.02.002 | volume=68 | issue=9 | title=Iridoid glycosides from the stems of Pithecoctenium crucigerum (Bignoniaceae) |date=May 2007 | journal=Phytochemistry | pages=1307–11| last1=Martin | first1=Frédéric | last2=Hay | first2=Anne-Emmanuelle | last3=Corno | first3=Laura | last4=Gupta | first4=Mahabir P. | last5=Hostettmann | first5=Kurt }}</ref>

==References== <references>

<ref name=IPNI_77100444-1>{{citation |title=''Amphilophium crucigerum'' (L.) L.G.Lohmann|work=The International Plant Names Index |url=http://www.ipni.org/ipni/idPlantNameSearch.do?id=77100444-1 |accessdate=2022-03-20}}</ref>

<ref name=POWO_77100444-1>{{citation |title=''Amphilophium crucigerum'' (L.) L.G.Lohmann |work=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77100444-1 |accessdate=2022-03-20}}</ref>

</references>

Category:Bignoniaceae Category:Flora of Mexico Category:Flora of Central America Category:Flora of Southern America Category:Plants described in 1753