4. Arabidopsis croatica (Schott) O’Kane & Al-Shehbaz,

Novon 7: 325. 1997; Arabis croatica Schott, in Schott, Nyman, &

Kotschy, Analect. Bot. 44. 1854; Cardaminopsis croatica (Schott) Jávorka, Magyar Fl.

435. 1924. Type: Croatia, F. Maly s. n. (holotype, BP?).

Herbs, perennial, with a distinct caudex. Stems 8–18(–20) cm, erect, divaricately branched, flexuous, glabrous. Basal leaves rosulate; petiole to 3 cm; leaf blade obovate, 0.5–2 x 0.4–1.5 cm, glaucous, fleshy, glabrous or sparsely pubescent with simple and fewer, short-stalked forked trichomes, margin entire to denticulate, rarely lyrate-pinnatifid; cauline leaves similar to basal ones, sometimes larger. Fruiting pedicels slender, horizontal or reflexed, 7–10 mm. Sepals 2.5–3.5 mm long, glabrous or distally sparsely pilose with simple trichomes, lateral pair saccate; petals lavender to purplish, 4–6 x 2–2.5 mm, apex obtuse; claw, short, entire; filaments lavender, 2.5–3.5 mm; ovules ca. 50 per ovary. Fruits linear, compressed, smooth to slightly torulose, 1.8–5 cm x 0.9–1.1 mm; valves obscurely veined; style to 1 mm, slender. Seeds oblong, compressed, light brown, ca. 1 mm, wingless; cotyledons accumbent.

Flowering: May–July.

Habitats: Rocky areas, crevices.

Distribution: Bosnia, Croatia.