Leibnitzia lyrata (Sch. Bip.) G. L. Nesom

Plants of Leibnitzia lyrata with cleistogamous heads are encountered and collected much more often than those with chasmogamous heads.

The combination Leibnitzia lyrata proposed by G. L. Nesom (1995) appeared to be based on Chaptalia lyrata D. Don (an illegitimate later homonym) but was actually based on Gerbera lyrata Schultz-Bipontinus, which was cited in synonymy by Nesom.

Leaves: petioles ¹/8–⁵/8 lengths of blades; blades 3–19 cm. Peduncles 8–64 cm in fruit, often dilated distally. Heads: vernal chasmogamous, autumnal cleistogamous. Cypselae tan to purplish, 6–10 mm. 2n = 46.

Gerbera lyrata Schultz-Bipontinus in B. Seemann, Bot. Voy. Herald, 313. 1856, based on Chaptalia lyrata D. Don, Trans. Linn. Soc. London 16: 243. 1830, not (Willdenow) Sprengel 1826; C. alsophila Greene; C. leucocephala Greene; Leibnitzia seemannii (Schultz-Bipontinus) G. L. Nesom

Leibnitzia lyrata, common name Seemann's sunbonnet, is a plant species widespread across much of Mexico and also found in the US states of Arizona and New Mexico. It is found in open locations in pine-oak woodlands, often in disturbed areas.

Leibnitzia lyrata is a perennial herb up to 60 cm (2 feet) tall. Heads are borne singly. Outer florets of the head are pink to purplish, the inner florets white. Flowers tend to be fully open early in the season but remain closed and self-fertilizing later in the year.

Leibnitzia lyrata là một loài thực vật có hoa trong họ Cúc. Loài này được (Sch.Bip.) G.L.Nesom mô tả khoa học đầu tiên năm 1995.