Impatiens xanthocephala W. W. Smith

Plants annual, 10-16 cm tall, slender, glabrous, with few supporting roots and fibrous roots. Stem erect, often with opposite branches basally, rarely simple, naked at base. Leaves alternate, petiolate or upper leaves subsessile; petiole 0.5-1(-2) cm; leaf blade green on both sides, ovate or ovate-oblong, 1-2 × 0.8-1 cm, membranous, lateral veins 2 or 3(or 4) pairs, inconspicuous, base broadly cuneate or rounded, margin remotely crenate or shallowly undulate, teeth mucronulate, apex obtuse. Inflorescences in upper leaf axils, 1- or 2-flowered; peduncles often ca. 1/2 as long as leaves. Pedicels 5-10 mm, slender, bracteate above middle; bracts persistent, lanceolate, ca. 2 mm. Flowers golden-yellow, large, ca. 3.5 cm deep. Lateral sepals 4, outer 2: orbicular, 2-3 mm, submembranous, midvein fine, apex mucronulate; inner 2: ovate, very small, membranous, midvein inconspicuous, apex obtuse. Lower sepal purple spotted, funnelform, 2-2.5 cm deep, gradually narrowed into an incurved, slender spur 1.5-2 cm; mouth vertical, ca. 8 mm wide, tip acute. Upper petal suborbicular, 5-6 mm, apex emarginate, abaxial midvein thickened, carinate at middle; lateral united petals not clawed, 2.3-2.9 cm, 2-lobed; basal lobes orbicular, very small, 2-3 mm in diam.; distal lobes broadly dolabriform, 5-7 mm, apex rounded; auricle inflexed, very small. Filaments linear, 4-5 mm; anthers obtuse. Ovary erect, fusiform, ca. 5 mm. Capsule not seen. Fl. Aug.

SW Sichuan, NW Yunnan.

● Forest margins, grasslands, limestone areas; ca. 3100 m.

Impatiens xanthocephala adalah spesies tumbuhan yang tergolong ke dalam famili Balsaminaceae. Spesies ini juga merupakan bagian dari ordo Ericales. Spesies Impatiens xanthocephala sendiri merupakan bagian dari genus Impatiens. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh W.W.Sm..

Impatiens xanthocephala là một loài thực vật có hoa trong họ Bóng nước. Loài này được W.W. Sm. mô tả khoa học đầu tiên năm 1920.

黄头凤仙花（学名：Impatiens xanthocephala）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3,100米的地区，常生于石灰岩或林缘草地，目前尚未由人工引种栽培。