Euphorbia polygalifolia, Boiss. & Reuter

32. E. polygalifolia Boiss. & Reuter View in CoL View at ENA in Boiss., Cent. Euphorb. 34 (1860).

Glabrous or rarely pubescent perennial with a woody stock and numerous slender, decumbent or ascending stems 5-30 cm. Lower leaves obovate, much smaller than the upper; upper obovate-oblong; all obtuse, entire or serrulate. Ray-leaves ovate; raylet-leaves rhombic-ovate or reniform, mucronulate. Rays (3-)4-6. Capsule c. 3-5 mm, depressed-globose, with numerous stout, cylindrical tubercles. Seeds smooth, grey, shiny. Dry grassland and thickets. • N. & E. Spain. Hs. E. mariolensis Rouy , Bull. Soc. Bot. Fr. 29: 127 (1882), may be subspecifically distinct, but requires further investigation. It is pubescent, has narrower leaves and larger, less densely tuberculate capsules. It is recorded from calcareous hillsides in N.E. Spain and S. France.