Impatiens tenerrima Y. L. Chen

Plants annual, 5-10 cm tall, soft. Stem very slender, succulent, opposite-branched at middle part, rarely simple, often with 1 pair of suborbicular leaves at middle. Leaves alternate, petiolate; leaf blade ovate or broadly ovate, 1-3 × (0.8-)1-1.7 cm, thinly membranous, without glands, lateral veins 3 or 4 pairs, base broadly cuneate or truncate, glands absent, margin remotely coarsely crenate, apex shortly acute, mucronulate. Inflorescences axillary, 1-flowered; peduncles ca. as long as petioles or longer, often pendulous. Pedicels bracteate below flowers; bracts persistent, ovate, ca. 2 × 1 mm, submembranous, 1-veined, apex acuminate. Flowers yellow, with a brown-purple lower sepal, smaller, ca. 8 mm deep. Lateral sepals oblong or ovate-oblong, 5-6 × ca. 2.5 mm, thinly membranous, apex cuspidate, abaxial midvein slightly turgid-carinate. Lower sepal purple-brown striate, navicular, 4-5 mm deep, without a spur. Upper petal white, suborbicular, ca. 8 mm in diam., base slightly cordate, apex rostellate, abaxial midvein narrowly carinate; lateral united petals ± clawed, 2.5-3 cm, 2-lobed; basal lobes ovate-lanceolate, apex acuminate; distal lobes oblong-lanceolate, ca. 3 × as long as basal lobes, broader, apex elongate into a linear thread 1.7-1.8 cm; auricle inflexed, obliquely triangular. Filaments linear, 4-6 mm; anthers obtuse. Ovary fusiform, ca. 4 mm. Capsule not seen. Fl. Aug.

SW Sichuan (Muli).

● Forest understories, stony places; ca. 2800 m.

Impatiens tenerrima adalah spesies tumbuhan yang tergolong ke dalam famili Balsaminaceae. Spesies ini juga merupakan bagian dari ordo Ericales. Spesies Impatiens tenerrima sendiri merupakan bagian dari genus Impatiens. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Y.L.Chen.

Impatiens tenerrima là một loài thực vật có hoa trong họ Bóng nước. Loài này được Y.L. Chen mô tả khoa học đầu tiên năm 1978.

柔茎凤仙花（学名：Impatiens tenerrima）为凤仙花科凤仙花属的植物，为中国的特有植物。分布在中国大陆的四川等地，生长于海拔2,800米的地区，多生在林下岩石处，目前尚未由人工引种栽培。