短梗厚壁荠 duan geng hou bi ji

Isatis brevipes (Bunge) Jafri; Pachypterygium brevipes var. persicum Boissier; P. heterotrichum Bunge; Pachypteris persica (Boissier) Parsa.

Herbs 8-20(-25) cm tall, glabrous and glaucous throughout except sometimes for fruit. Stems erect or ascending, several to many branched below and above. Basal leaves subsessile, soon withered; lowermost cauline leaves sessile, oblong-ovate, (1-)2-3.5 cm × 5-13(-20) mm, subfleshy, base auriculate or subamplexicaul, margin entire or repand, apex obtuse. Uppermost cauline leaves ovate-cordate, 0.5-3 cm × (1-)2-7(-10) mm, subfleshy, base subamplexicaul, margin entire, apex obtuse. Fruiting pedicels filiform, divaricate or reflexed, to 4 mm. Sepals yellowish, oblong, (0.6-)0.7-1 × ca. 0.4 mm. Petals yellow, oblanceolate or obovate, 1-2 × 0.3-0.7 mm, apex obtuse; claw absent. Filaments yellowish, 0.7-1.1 mm; anthers subglobose, 0.1-0.2 mm. Fruit subpyriform, 4-5 × 1.5-2 mm, base obtuse, apex truncate or subemarginate; valves glabrous or pubescent, papillate in the middle. Seeds narrowly oblong, yellowish, ca. 2 × 1 mm. Fl. and fr. Apr-Jun.

Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Pakistan, Tajikistan, Turkmenistan, Uzbekistan; SW Asia].

The above first record from China is based on Regel s.n., 5 May 1877 (LE), collected from Xinjiang.