This inflorescence type comes in very many as a basic form of plant families before. A typical example are the cruciferous vegetables (Brassicaceae), which have almost exclusively grapes as inflorescences. Often one finds grapes also with the butterflies (Faboideae) and hyacinth plants (Hyacinthaceae).
( Biscutella laevigata )
( Vicia cracca )
Vineyard grape hyacinth
( Muscari neglectum )
If the main axis is compressed and the flower-bearing secondary axes are elongated, the result is an umbel-like shape, called an umbellate or umbrella cluster . This less common form of inflorescence is found in the umbellate milk star , but in an imperfect, terminal form, often in cruciferous vegetables such as shepherd's purse or candytuft . In the tansy , the flower heads are arranged as umbrella clusters.
Umbellate Milky Star ( Ornithogalum umbellatum )
Umbellate candytuft ( Iberis umbellata )
Shepherd's purse , only the terminal part is umbel-like
( Tanacetum vulgare )
If you replace the flowers of the grape with partial inflorescences, you get a special dibotryum , the double cluster . If this only happens to the lateral flowers, the homeothetical form is obtained; If the main axis also forms a cluster, the heterothetical shape is obtained. The exchange of flowers in partial inflorescences can also take place in the partial inflorescences; a new branching level results and one speaks of a triple cluster or generally of a tribotryum.
Yellow sweet clover with homeothetical double clusters
A lifting with heterothetical double clusters