Parthenium integrifolium L., 1753

Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part P), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 718-782 : 724

Parthenium integrifolium Linnaeus , Species Plantarum 2: 988. 1753.

"Habitat in Virginia." RCN: 7162.

Lectotype (Mears in Phytologia 31: 465. 1975): Herb. Linn. No. 1115.2 ( LINN) .

Current name: Parthenium integrifolium L. ( Asteraceae ).

Note: Mears stated "HOLOTYPE: Maryland (or Virginia), Clayton (LINN!)". Although there is no evidence that the material in LINN came from Clayton, Mears’ indication of LINN is clear, and there is only one sheet there associated with this name.