Arnoglossum is a North American genus of plants in the family Asteraceae, described as a genus in 1817.^[1][3][4] They have the common name Indian plantain because they resemble the unrelated common plantain (Plantago spp.).

Quick Facts Arnoglossum, Scientific classification ...

Arnoglossum
Arnoglossum atriplicifolium
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Senecioneae
Genus:	Arnoglossum Raf. 1817 not Gray 1821 (syn of Plantago in Plantaginaceae)[1][2]
Synonyms[1]
Conophora (de Candolle) Nieuwland Mesadenia Rafinesque

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Arnoglossum is a member of the tribe Senecioneae which has been undergoing extensive revisions in recent years. Many of the species now in the genus were formerly classified in other genera such as Cacalia, Mesadenia, and Senecio. The remaining species are all native to North America (Ontario and eastern United States).^[5]

The name Arnoglossum is from the Greek word "arnos" meaning lamb, and "glossum" meaning tongue and is the ancient name for some species of Plantago.^[1]

Species^{[1][2][5][6][7]}

• Arnoglossum album L.C.Anderson - Florida
• Arnoglossum atriplicifolium (L.)H.Rob. - pale Indian plantain - much of eastern + central USA
• Arnoglossum diversifolium (Torr. & A.Gray) H.Rob. - variable-leaved Indian plantain - Georgia, Florida, Alabama
• Arnoglossum floridanum (A.Gray) H.Rob. - Florida cacalia - Florida
• Arnoglossum ovatum (Walter) H.Rob. - Ovateleaf cacalia - from eastern Texas to North Carolina
• Arnoglossum plantagineum Raf. - tuberous Indian-plantain or groovestem Indian plaintain - from Ontario south as far as Texas and Alabama
• Arnoglossum reniforme (Hook.) H.E. Robins. - eastern USA
• Arnoglossum sulcatum (Fernald) H.Rob - Georgia Indian plaintain - Georgia, Florida, Alabama, Mississippi