Pityopsis

Pityopsis is a genus of North American plants in the aster tribe within the sunflower family.[3][4] Species of Pityopsis are known by the common names silkgrass or golden asters or grass-leaved goldenasters .[5][6]

Species[1][7]

• Pityopsis aspera (Shuttlw. ex A.Gray) Small – Pineland silkgrass - LA MS AL GA FL SC NC VA TN
• Pityopsis falcata (Pursh) Nutt. – Sickleleaf silkgrass - ONT NY MA CT RI NJ FL
• Pityopsis flexuosa (Nash) Small – Zigzag silkgrass - FL
• Pityopsis graminifolia (Michx.) Nutt. – Narrowleaf silkgrass - Bahamas, Belize, Honduras, Chiapas, Oaxaca, Veracruz, Tamaulipas, United States (TX LA MS AL GA FL SC NC VA MD DE WV OH KY TN AR OK)
• Pityopsis microcephala (Small) Small - FL SC TX
• Pityopsis oligantha (Chapm. ex Torr. & A.Gray) Small – Grassleaf goldaster - USA (TX LA MS AL GA FL)
• Pityopsis pinifolia (Elliott) Nutt. – Taylor County goldaster - USA (AL GA SC NC)
• Pityopsis ruthii (Small) Small – Ruth's golden Aster - TN

grass-leaved goldenasters silkgrass
Pityopsis ruthii
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Astereae[1]
Genus:	Pityopsis Nutt.
Type species
Pityopsis pinifolia[2][3] (Elliott) Nutt.
Synonyms[1]
Heterotheca sect. Pityopsis (Nutt.) V.L.Harms Chrysopsis ect. Pityopsis (Nutt.) Torr. & A.Gray

References

1. Flann, C (ed) 2009+ Global Compositae Checklist
2. lectotype designated by Pfeiffer, L. K. G. 1874. Nomenclator Botanicus 2(1): 735.
3. Tropicos, Pityopsis Nutt.
4. Nuttall, Thomas. 1840. Transactions of the American Philosophical Society, new series 7: 317–318 entirely in English
5. North Carolina Wildflowers, Shrubs, & Trees (2011-11-27)
6. Flora of North America Vol. 20 Page 222, Grass-leaved goldenasters, Pityopsis Nuttall
7. Biota of North America Program 2013 county distribution maps