Primula (Auriculastrum), Schott

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 18

Subgen. Auriculastrum Schott . Heterostylous. Farinose or efarinose. Hairs glandular, sometimes minute. Leaves with involute vernation, fleshy or coriaceous, not rugose. Bracts not gibbous or saccate. Calyx rounded, not angled.

Numerous hybrids are known; many are fertile and some are frequent, especially 14 x 19,25 x 29,28 x 29. The last, P. x pubescens Jacq. , is occasionally found outside the area of 29, P. hirsuta .