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  | 1 | Fruits unilocular, indehiscent, 1-seeded |  | Clypeola |  
  | + | Fruits bilocular, dehiscent, 2-many seeded |  | (2) |  
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  | 2 (1) | Flowers axillary and solitary |  | Buchingera |  
  | + | Flowers in ebracteate racemes. |  | (3) |  
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  | 3 (2) | Hairs bipartite, appressed |  | (4) |  
  | + | Hairs stellate or branched, subappressed or appressed |  | (5) |  
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  | 4 (3) | Ovary 10-40-ovuled, fruit usually many seeded, often elongated (siliqua), seeds	broadly winged |  | Farsetia |  
  | + | Ovary 2-10-ovuled, fruits short (silicula), 2-seeded (in our species), seeds narrowly winged, (cultivated) |  | Lobularia |  
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  | 5 (3) | Siliculae ovoid or subglobose with inflated or tumid valves without flattened margins, seeds not winged, flowers white or pinkish |  | Ptilotrichum |  
  | + | Siliculae usually sub-orbicular, with usually biconvex tumid valves with + narrow, flattened margins (rarely valves plane-compressed), flowers yellow or yellowish (sometimes whitish or purplish) |  | Alyssum |  |