Lignariella hobsonii (pearson) Baehni in Candollea 15: 57. 1955. Cochlearia hobsonii Pearson in Hook., Icon. Pl. t. 2643. 1900.

Herbs accumbent, 3 - 7 (-30) cm high, branched. Leaves marcescent, broadly ovate or oblong-suborbicular, attenuate at base, acute at apex, 3 - 6 x 1.5 - 2 mm, deeply trilobed, often tripartite, rarely entire or 5-lobed; stipules conical, at base of cauline leaves, glandular, ca 0.3 mm long; petioles 2 - 15 mm long. Flowers solitary, axillary, 5 - 6 mm long, ebracteate; pedicels glandular, 10 - 15 mm long, accrescent. Sepals cymbiform, forming a pouch at base, narrowly scarious along margins, glabrous, ca 2.2 mm long. Petals ovate or nearly orbicular, rounded at apex, abruptly narrowed, blue, occasionally white, rarely mauve. Stamens 2.8 - 3 mm long; filaments flat, subwinged; anthers ca 0.5 mm long. Ovary attenuate at apex; ovules 2 (or 6, rarely 11 or 12) with thick funicle. Fruits unilocular, often curved or sickle-shaped, flat, 10 - 13 mm long, 1.5 - 2 mm thick; style 1 - 4 mm long. Seeds 1 - 6, with smooth testa.

Fl. & Fr. June - Aug.

Distrib. India: Streamsides, 2600 - 3600 m. Sikkim.

Nepal, Bhutan and China (Tibet).

Notes. Smaller forms with shorter styles are referable to subsp. serpens (W. Smith) Hara, which seems to be the common one in Sikkim Himalayas.