Polianthes
Template:Short description Template:Use dmy dates Template:Automatic taxobox Polianthes Template:IPAc-en<ref>Sunset Western Garden Book, 1995:606–607</ref> is a genus of flowering plants in family Asparagaceae. It includes 23 species native to Mexico.<ref name = powo/> One of its species is the tuberose, Polianthes tuberosa, a plant that is commonly used in perfume making.
Taxonomy
Polianthes and close relatives have long presented significant taxonomic difficulty. With the advent of DNA sequencing, new karyologic and evolutionary phylogenetic studies showed that Polianthes, along with Manfreda and Prochnyanthes, were genetically nested within the traditional circumscription of Agave, rendering that genus paraphyletic.<ref name="Thiede2001"/> Early in the 21st century, these new phylogenetic results led to a reclassification of to include Polianthes, Manfreda and Prochnyanthes together as Agave subgenus Manfreda.<ref name="Thiede2001"/>
There was reaction against the changes from those who noted that the large morphological differences between the genera in this new Agave s.l. making them "counter-intuitive from a horticultural point of view".<ref name="PBSPolianthes"/> Polianthes morphologically differs from the classic Agave description in that they are deciduous with narrow leaves and no spines.<ref name="Avent"/> Mexican taxonomists have continued to adhere to the traditional classifications and have published new species of Polianthes.<ref name="Thiede2017"/> Thus, based on a wider consideration of previously established genetic, morphological, and estimated genetic divergence times, Vázquez-García et al. proposed a narrower circumscription of Agave,<ref name="Vazquez3"/><ref name="Avent"/> paving the way for a reconsideration of Polianthes as a genus.<ref name="Vazquez3"/><ref name="Avent"/>
Species
23 species are accepted.<ref name = powo/>
- Polianthes aarodriguezii Template:Small
- Polianthes alboaustralis Template:Small
- Polianthes bicolor E.Solano, Camacho & García-Mend.
- Polianthes cernua Template:Small
- Polianthes densiflora (B.L.Rob. & Fernald) Shinners
- Polianthes elongata Rose
- Polianthes geminiflora (Lex.) Rose
- Polianthes graminifolia Template:Small
- Polianthes howardii Verh.-Will.
- Polianthes longiflora Rose
- Polianthes michoacana M.Cedano, Delgad. & Enciso
- Polianthes montana Rose
- Polianthes multicolor E.Solano & Dávila
- Polianthes nelsonii Rose
- Polianthes oaxacana García-Mend. & E.Solano
- Polianthes palustris Rose
- Polianthes platyphylla Rose
- Polianthes pringlei Rose
- Polianthes quilae Template:Small
- Polianthes sessiliflora (Hemsl.) Rose
- Polianthes tuberosa L.
- Polianthes venustuliflora Template:Small
- Polianthes zapopanensis E.Solano & Ríos-Gómez