Senna spectabilis

"Cassia excelsa" and "Cassia fastigiata" redirect here. These taxa may also refer to other species; see below.

Senna spectabilis is a plant species of the legume family (Fabaceae) in the subfamily Caesalpinioideae.

Taxonomy and systematics

S. spectabilis was long placed in Cassia, or in the non-monophyletic Cathartocarpus assemblage, or separated - together with its relative Senna peralteana - in Pseudocassia. In addition, is has been variously treated under a range of taxa, some of which were also used for related plants:

• Cassia amazonica <small>Ducke</small>
• Cassia carnaval <small>Speg.</small>
• Cassia edulis <small>Posada-Ar.</small>
• Cassia excelsa <small>Schrad.</small> var. acutifolia <small>Hassl.</small>

Cassia excelsa <small>Kunth</small> is a synonym of Cassia fistula. See also below.

Cassia acutifolia <small>Delile</small> and Senna acutifolia <small>(Delile) Batka</small> are synonyms of Senna alexandrina <small>Mill.</small>

• Cassia humboldtiana <small>DC.</small>
• Cassia speciosa <small>Kunth</small>

Senna speciosa <small>Roxb.</small> is a synonym of Senna surattensis <small>(Burm. f.) H.S.Irwin & Barneby</small>. See also below.

• Cassia spectabilis <small>DC.</small>
• Cassia totonaca <small>Sessé &......
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