Orlaya Hoffm.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 372

107. Orlaya Hoffm. 1

Leaves 2-pinnate. Sepals small or obsolete. Petals white or pink, the outer larger and radiate. Fruit ovoid, compressed dorsally; primary ridges slender, setulose; secondary ridges with 1 or 2 rows of spines.

1 Rays of umbel 2-4 1. kochii

1 Rays of umbel 5-12

2 Spines on secondary dorsal ridges uniseriate or partly 2- seriate, strongly compressed and confluent at the base; upper cauline leaves 2- to 3-pinnatisect 3. daucorlaya

2 Spines on secondary dorsal ridges 2- to 3-seriate, scarcely compressed and not confluent at the base; upper cauline leaves entire or pinnatisect 2. grandiflora