Chrysosplenium dubium, Gay ex Ser.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 381

5. C. dubium Gay ex Ser. in DC., Prodr. 4:48 (1830).

Glabrous, stoloniferous. Leaves opposite, ovate or suborbicular, crenate, cuneate or rounded at base; petiole equalling or shorter than lamina. Flowering stems up to 15 cm. Sepals 1-5-2 mm, yellowish-green. Disc distinctly 8-lobed. Stamens 8. Filaments and styles much shorter than sepals. Capsule deeply bilobed, with unequal lobes, free from hypanthium in its upper two-thirds, considerably longer than sepals. Seeds suborbicular, furnished with conspicuous, bristle-like papillae in longitudinal rows. Mountains o f S. Italy. It. (TV. Africa and S. W. Asia.)