Cardamine marginata Philippi, Anal. Univ. Chile 27(2): 324. 1865; C. vulgaris var. marginata (Philippi) O. E. Schulz, Bot. Jarhb. Syst. 545. 1903. TYPE: Chile, Región VIII, Near Chillán, Manuel Antonio de Solis Obando s.n. (lectotype, here designated, SGO-63903!, fragments, BAA!). Muñoz (1960) listed another collections that I have not seen, SGO-49376.

            Herbs, perennial. Rhizomes much thickened, short, forming a tuberous stem base, not scaly. Stems solitary, 5-15 cm, erect, simple few branched at middle, glabrous or sparsely pubescent. Basal leaves and lowermost cauline compound or rarely first leaf simple, 2.5-4 cm, with 3-5-foliolate; petiole 1.5-3.5 cm; terminal leaflet 2.5-7 ´ 1-3 mm, ovate to obovate or suborbicular, entire, repand or obtusely 3-5-toothed, on a petiolule 1.5-4 mm; lateral leaflets oblanceolate to linear, 1.5-4 ´ 0.5-2 mm, sessile or on a petiolule 0.5-2 mm, entire or repand; upper cauline leaves 3-5-foliolate, smaller than basal; terminal lobe narrowly obovate to oblanceolate, usually obtusely 3-toothed; lateral lobes linear, sessile. Racemes ebracteate, 3-8-flowered; rachis flexuous; fruiting pedicels 3-7(-10) mm, divaricate-ascending, slender, straight slightly curved, forming a distinct angle with fruit. Sepals oblong, 1-1.5 ´ 0.5-0.7 mm; petals white, narrowly oblanceolate, 2.5-3.2 ´ 0.7-1 mm, gradually narrowed to base, apex obtuse; filaments 1.5-2 mm; anthers ovate, 0.2-0.3 mm; ovules 6-10 per ovary. Fruits linear-lanceolate, 1-1.5(-1.7) cm ´ 1.8-2.5 mm, attenuate to style; style slender, 1-2 mm. Seeds brown, orbicular to broadly ovate, 2-2.5 ´ 1.2-1.5 mm, winged all around; wing 0.1-0.2 mm wide.

Flowering: Sept-Oct.

Habitat: vernal pools.

Elevation: 100-2000 m

Distribution: endemic to Chile (Región VIII).