Iberidella andersonii J. D. Hooker & Thomson, J. Proc. Linn. Soc., Bot. 5: 177. 1861; I. tibetica C. Marquand & Airy Shaw.

Herbs perennial, (4-)6-15(-20) cm tall, glabrous throughout. Stems erect or decumbent, simple. Basal leaves rosulate; petiole (2-)5-10(-15) mm; leaf blade oblong, spatulate, or suborbicular, (0.3-)0.5-1.5(-1.8) cm × 2-6(-10) mm, base obtuse, margin entire, apex rounded. Middle cauline leaves sessile, oblong, ovate, or suborbicular, 5-10(-15) × 2-5(-7) mm, base auriculate, margin repand or entire, apex rounded, obtuse, or subacute. Fruiting pedicels (2-)4-7 mm, slender, divaricate, straight. Sepals oblong, 2-2.5 × 1.2-1.5 mm, not saccate, margin white. Petals white with lavender tinge, spatulate, (5-)6-7 × 2.5-3.5 mm, apex rounded. Filaments 2.5-3.5 mm; anthers oblong, 0.6-0.8 mm. Ovules 4-8(-10) per ovary. Fruit elliptic, 5-8 × 3-4 mm, base obtuse, apex obtuse to subacute, without apical notch; apical wings absent; style 0.7-1.5 mm. Seeds dark brown, oblong, 1.6-1.9 × 1-1.2 mm, obscurely reticulate. Fl. (Mar-)May-Jul, fr. Jun-Aug.

The record and illustration in FRPS and Fl. Yunnan. (6: 32. 1995) of Thlaspi andersonii from Yunnan are most likely based on young plants of T. yunnanense with an obsolete apical notch, a feature not uncommon in the species.

Presently treated by Ihsan Al-Shehbaz as Noccaea andersonii (J. D. Hooker & Thomson) Al-Shehbaz (Adansonia 24(1): 91. 2002).

Rocky crevices, scree, moist grounds, steep hillsides, grassy river banks; 3200-5200 m. Xizang [Bhutan, Kashmir, Nepal, Pakistan, Sikkim].