Erodium boissieri Coss.
Erodium boissieri is a perennial herb 8-24(30) cm with stout branching woody rootstock; stemless or rarely short stemmed.
Leaves: Leaves all basal, with limb 2.5-15 x 2-5 cm, with a pedicel of 1.5-12.5 cm, ± ovate to cordiform, pinnatifid to pinnatipartite with 1-2 pairs of completely free leaflets, but no intercalary leaflets, often with a broad reddish-brown mark along the veins, covered in short, white appressed hairs; principal segments 3-5(7), generally the terminal larger and often trilobate, crenate or dentate; stipules 1.4-5.5mm, obovate to lanceolate, scarious, brown.
Inflorescence: Peduncles 2x leaf length, densely glandular hairy; umbel with 2-5(7) flowers; bracts 2-7 x 2.5-4 mm, free, ciliate; sepals 5-8.5 x 2-3 mm or 8-12 x 2.7-4.5 mm in fruit; mucro 0.5-1.5 mm; petals rounded and touching, 8.5-11 x 5.5-7.55 mm, ± equal, purple-pink, ± blotched purple or rarely with no central marks and deeper veins; nectaries green-yellow; stamen filaments abruptly widened at the base and dentate, pink; anthers purple; pollen orange; stigma violet.
Fruit: beak 52-78 mm; foveole not glandular but has a few needle-like hairs and without a furrow. 2n=20
Distribution: Endemic to Spain, Sierra Nevada, on calcareous screes, at Los Aloyos, Cortheula, Tesoro and Huenes 1100-2000m.
