挪威虎耳草 nuo wei hu er cao

Antiphylla asiatica (Hayek) Losinskaja; A. oppositifolia (Linnaeus) Fourreau; Saxifraga asiatica Hayek; S. oppositifolia subsp. asiatica (Hayek) Engler & Irmscher.

Plants many branched, ca. 6 cm tall, with shoots forming mats or cushions. Flowering stem brown pilose. Shoot leaves decussate, imbricate, aggregated into a rosette, gemmiferous at leaf axils, subobovate, 3.5-4 × 1.6-2.3 mm, subleathery, both surfaces glabrous, chalk gland 1, margin pilose, apex obtuse. Cauline leaves opposite, remote, subobovate, 4.2-4.5 × 2.6-2.9 mm, subleathery, both surfaces glabrous, chalk gland 1, margin pilose, apex obtuse. Flower solitary; pedicel ca. 3 mm, brown pilose. Sepals erect, ovate to elliptic-ovate, ca. 5 × 3 mm, leathery, both surfaces glabrous, veins 6 or 7, partly or fully confluent at apex, margin pilose, apex obtuse. Petals purple, narrowly obovate-spatulate, ca. 1.2 × 0.5 cm, ca. 7-veined, base gradually narrowed into a claw ca. 3.5 mm, apex retuse. Stamens ca. 7 mm. Ovary subellipsoid, ca. 2.7 mm, with an obscure nectary disc; styles ca. 6.5 mm. Fl. Jul-Aug. 2n = 26, 52.

Alpine rock crevices, cliff ledges; 3900-5600 m. Xinjiang (Kunlun Shan, Taxkorgan Tajik Zizhixian, Tomar), W Xizang [Kashmir, Mongolia, Russia; Europe, North America].