Psilactis

Psilactis is a genus of North American and South American plants in the aster tribe within the sunflower family which are known by the common name tansyaster.[4][5][6][7][8][9][10]

Species[1][11][12]

• Psilactis asteroides A.Gray - AZ NM TX, Chihuahua, Coahuila, Nuevo León, Durango, Jalisco, Aguascalientes, Sonora, Sinaloa, Querétaro, México State, Michoacán
• Psilactis brevilingulata Sch.Bip. ex Hemsl. - AZ NM TX, Mexico, Colombia, Peru
• Psilactis gentryi (Standl.) D.R.Morgan - Huachuca Mountains in Arizona, Sonora, Chihuahua, Durango, Hidalgo, México State
• Psilactis heterocarpa (R.L.Hartm. & M.A.Lane) D.R.Morgan - TX
• Psilactis odysseus (G.L.Nesom) D.R.Morgan - Nuevo León, Tamaulipas

formerly included[1]

• Psilactis coulteri A.Gray - Machaeranthera coulteri (A.Gray) B.L.Turner & D.B.Horne
• Psilactis crispa Brandegee - Machaeranthera crispa (Brandegee) B.L.Turner & D.B.Horne
• Psilactis leptos Shinners - Psilactis asteroides A.Gray
• Psilactis tenuis S.Watson - Machaeranthera tenuis (S.Watson) B.L.Turner & D.B.Horne

Psilactis
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae[1]
Genus:	Psilactis A.Gray
Type species
Psilactis asteroides[2][3] A.Gray
Synonyms[1]
Machaeranthera sect. Psilactis (A.Gray) B.L.Turner & D.B.Horne

References

1. Flann, C (ed) 2009+ Global Compositae Checklist Archived 2015-01-03 at Archive.today
2. lectotype designated by Pfeiffer, L. K. G. 1874. Nomenclator Botanicus 2(2): 857.
3. Tropicos, Psilactis A. Gray
4. Gray, Asa. 1849. Memoirs of the American Academy of Arts and Science, new series 4(1): 71–72 descriptions in Latin
5. Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Astereae". Euro+Med PlantBase. Freie Universität Berlin. Retrieved 2009-07-18.
6. UniProt. "Tribe Astereae". Retrieved 2009-07-18.
7. National Herbarium of New South Wales. "Genus Kippistia". New South Wales FloraOnline. Royal Botanic Gardens, Sydney. Retrieved 2009-07-18.
8. "Polyarrhena Cass". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Retrieved 2009-07-18.
9. Flora of North America Vol. 20 Page 462 Psilactis A. Gray
10. "Psilactis". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 October 2015.
11. Morgan, D. R. 1993. A molecular systematic study and taxonomic revision of Psilactis (Asteraceae: Astereae). Systematic Botany 18(2): 290–308
12. Biota of North America Program 2013 county distribution maps