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, it has been variously treated under a range of taxa, some of which were also used for related plants:
- Cassia amazonica
- Cassia carnaval
- Cassia edulis
- Cassia excelsa var. acutifolia
- Cassia excelsa is a synonym of Cassia fistula. See also below.
- Cassia acutifolia and Senna acutifolia are synonyms of Senna alexandrina
- Cassia humboldtiana
- Cassia speciosa
- Senna speciosa is a synonym of Senna surattensis . See also below.
- Cassia spectabilis
- Cassia totonaca
- Cassia trinitatis
- Cathartocarpus humboldtianus
- Cathartocarpus speciosus
- Cathartocarpus trinitatis
- Pseudocassia spectabilis
In addition, one or two varieties of this species are recognized:
- var. excelsa with the synonyms:
- Cassia excelsa (see also above)
- Cassia fastigiata (Cassia fastigiata is a synonym of Senna surattensis )
- var. micans - may belong into Senna macranthera (= Cassia macranthera ). Synonyms:
- Cassia micans
- Cassia speciosa (see also above)
- Chamaefistula speciosa
Read more about this topic: Senna Spectabilis