{{Short description|Genus of legumes}} {{Automatic taxobox |image = Palo blanco 1.jpg |image_caption = ''Mariosousa willardiana'' |taxon = Mariosousa |authority = Seigler & Ebinger |type_species = ''Mariosousa coulteri'' |type_species_authority = (Bentham) Seigler & Ebinger |subdivision_ranks = Species |subdivision_ref = <ref name="Seigler">{{cite journal |vauthors=Seigler DS, Ebinger JE, Miller JT | title = ''Mariosousa'', a New Segregate Genus from ''Acacia s.l.'' (Fabaceae, Mimosoideae) from Central and North America. | journal = Novon | volume = 16 | issue = 3 | pages = 413–420 | year = 2006 | doi = 10.3417/1055-3177(2006)16[413:MANSGF]2.0.CO;2 | s2cid = 86112681 }}</ref><ref name="WorldWideWattle">{{cite web | url = http://www.worldwidewattle.com/speciesgallery/home.php | title = List of ''Acacia sensu lato'' species | author = Maslin B. | website = World Wide Wattle | publisher = | accessdate = 31 December 2013}}</ref> |subdivision = 13; see text |range_map = Mariosousa Distribution Map.svg |range_map_caption = The range of the genus ''Mariosousa'' |synonyms = *the ''Acacia coulteri'' group }}
'''''Mariosousa''''' is a genus of 13 species of flowering plants in the family Fabaceae. It belongs to the mimosoid clade of the subfamily Caesalpinioideae.<ref name="6subfamilies">{{cite journal | author = The Legume Phylogeny Working Group (LPWG). | year = 2017 | title = A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny | journal = Taxon | volume = 66 | issue = 1 | pages = 44–77 | doi = 10.12705/661.3| doi-access = free | hdl = 10568/90658 | hdl-access = free }}</ref> Members of this genus were formerly considered to belong to the genus ''Acacia''.<ref name="Seigler" />
Restricted in range to Central America, Mexico, and the southwestern United States, members of the genus are trees or shrubs bearing alternate, bipinnately compound leaves—each with a swelling at the base of the petiole—and white- to cream- or yellow-colored flowers. The flowers are typically borne in elongated, bottle brush–like spikes. The fruits that later replace these flowers are markedly flattened pods.
==Species== The genus ''Mariosousa'' comprises the following species:<ref name="Seigler"/><ref>{{cite journal |vauthors=Seigler DS, Ebinger JE | year = 2018 | title = New Combinations in ''Parasenegalia'' and ''Mariosousa'' (Fabaceae: Mimosoideae) | journal = Phytologia | volume = 100 | issue = 4 | pages = 256–259 | url = https://www.phytologia.org/uploads/2/3/4/2/23422706/100_4_256-259seiglerebingernewcombin_parasenegallia_and_mariosousa12-21-18.pdf}}</ref> * ''Mariosousa acatlensis'' <small>(Benth.) Seigler & Ebinger</small>—Acatlan acacia * ''Mariosousa centralis'' <small>(Britton & Rose) Seigler & Ebinger</small>—Central American acacia * ''Mariosousa compacta'' <small>(Rose) Seigler & Ebinger</small> * ''Mariosousa coulteri'' <small>(Benth.) Seigler & Ebinger</small>—Coulter acacia * ''Mariosousa dolichostachya'' <small>(S.F. Blake) Seigler & Ebinger</small>—longspike acacia * ''Mariosousa durangensis'' <small>(Britton & Rose) Seigler & Ebinger</small>—Durango acacia * ''Mariosousa heterophylla'' <small>(Benth.) Seigler & Ebinger</small>—palo blanco, Willard acacia * ''Mariosousa mammifera'' <small>(Schltdl.) Seigler & Ebinger</small> * ''Mariosousa millefolia'' <small>(S. Watson) Seigler & Ebinger</small>—Milfoil wattle, Santa Rita acacia * ''Mariosousa russelliana'' <small>(Britton & Rose) Seigler & Ebinger</small> * ''Mariosousa salazarii'' <small>(Britton & Rose) Seigler & Ebinger</small> * ''Mariosousa sericea'' <small>(Martens & Galeotii) Seigler & Ebinger</small> * ''Mariosousa usumacintensis'' <small>(Lundell) Seigler & Ebinger</small> ''Mariosousa willardiana'' is considered a synonym of ''Mariosousa heterophylla.''
==References== {{Reflist}}
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Category:Mariosousa Category:Fabaceae genera Category:Flora of the Americas
{{Mimosoideae-stub}}