american wistaria: an eastern United States native resembling the cultivated Japanese wisteria having pale purple-lilac flowers
wisteria: any flowering vine of the genus Wisteria
quark: (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3