Impatiens imbecilla Hook. fil.

Plants annual, (20-)40-60 cm tall, with few supporting roots, glabrous. Stem erect, slender; branchlets spreading, slender. Leaves alternate; petiole 2-4 cm, without basal glands; leaf blade gray-green abaxially, dark green adaxially, ovate or ovate-lanceolate, (3-)5-11 × 2.5-4 cm, membranous, abaxially glabrous, adaxially adpressed strigose, lateral veins 4-7 pairs, base cuneate, attenuate into petiole, margin coarsely crenate-serrate, teeth scarcely mucronulate, apex acuminate or caudate-acuminate. Inflorescences in upper leaf axils, (1 or)2-flowered; peduncles subequal to leaves, 2-3 cm, slender. Pedicels 1-1.5 cm, slender, bracteate at base or below middle; bracts caducous, ovate-lanceolate, 3-5 mm, pedicels and bracts puberulent. Flowers pink, medium-sized or small, 1.5-2 cm deep. Lateral sepals 2, ovate-orbicular, ca. 4 × 1.5-2 mm, apex long acuminate. Lower sepal navicular-cornute, 1.2-1.5 cm deep, gradually narrowed into an erect or curved spur; mouth oblique, tip acuminate. Upper petal orbicular, 7-8 mm in diam., apex retuse, rostellate, abaxial midvein thickened, cristate; lateral united petals not clawed, 2-lobed; basal lobes spotted, orbicular or subtriangular; distal lobes dolabriform, longer, apex rounded; auricle linear, elongate, inserted into spur. Filaments linear; anthers acute. Ovary linear, ca. 3 mm. Capsule linear, 2.5-3 cm. Fl. Aug-Sep.

Sichuan (Emei Shan).

● Forest margins on slopes, moist places at roadsides; 1300-2300 m.

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

Impatiens imbecilla là một loài thực vật có hoa trong họ Bóng nước. Loài này được Hook. f. mô tả khoa học đầu tiên năm 1910.

纤袅凤仙花（学名：Impatiens imbecilla）为凤仙花科凤仙花属下的一个种。