Words similar to sphaeromeria
Example sentences for: sphaeromeria
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According to Bremer and Humphries [ 2 ] , the Artemisia -group is monophyletic and defined by heterogamous-disciform capitula (disk florets usually bisexual and fertile, ray florets pistillate) or homogamous-discoid capitula (disk florets usually bisexual and fertile, ray florets absent), pollen with short or no spines (associated with anemophily), and thick-walled cypselas devoid of ribs (sometimes faint ribs are present in Sphaeromeria and Crossostephium ). All of the Artemisia -group genera contain species that have been variously placed within the taxonomic boundaries of Artemisia s.l.
Additionally, Artemisia s.l . is monophyletic only with the inclusion of five segregate genera: Seriphidium, Sphaeromeria, Neopallasia, Crossostephium , and Filifolium . Additionally, this clade is only weakly supported with a 63% posterior probability and bootstrap support <50%.
Sphaeromeria and Picrothamnus are endemic to western North America, whereas all remaining Artemisiinae genera occur in eastern, southwestern, or central Asia.
Sphaeromeria is considered closely related to Artemisia s.l.
Three of the eight segregate and allied genera that we examined were placed outside of the Artemisia -group (including Stilnolepis, Elachanthemum, and Kaschgaria ), whereas the remaining five were placed within it (including Seriphidium, Sphaeromeria, Neopallasia, Crossostephium , and Filifolium ). However many of these placements are among the most weakly supported branches of the resulting phylogenetic trees (Fig.
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