20. Buddleja officinalis Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg. 26: 496. 1880.
密蒙花 mi meng hua
Buddleja officinalis Maximowicz var. macrantha Lingelsheim.
Shrubs 1--4 m tall; branchlets, leaves abaxially, petioles, and inflorescences densely stellate tomentose. Branchlets terete or slightly 4-angled. Petiole 0.2--3 cm; leaf blade ovate to elliptic or narrowly so, 4--19 X 2--8 cm, adaxially glabrescent, base cuneate to decurrent, margin entire, sinuate, or repand dentate, apex acuminate, acute, or obtuse, lateral veins 8--14 pairs. Inflorescences terminal, paniculate or thyrsoid, 5--15(--30) X 2--10 cm. Calyx campanulate, 2.5--4.5 mm, outside densely stellate tomentose and with some glandular hairs; lobes triangular to broadly triangular, 0.6--1.2 X 1--1.2 mm. Corolla pinkish, lilac, or pale purple, with an orange throat, 1--1.3 cm, outside densely stellate tomentose and with some glandular hairs; tube 8--10 X (1.6--)2--2.2 mm, inside densely pilose; lobes suborbicular, 2--3 X 1.8--2.8 mm, inside glabrous. Stamens included, inserted just above middle of corolla tube; anthers oblong, 0.8--1.3 mm. Ovary ovoid, 1.5--2.2 X 1.2--1.8 mm, stellate tomentose and with some glandular hairs but glabrous below middle. Style 1--1.5 mm, basal hairs like those of ovary; stigma clavate. Capsules ellipsoid, 4--8 X 2--3 mm, stellate tomentose, glabrescent. Seeds narrowly elliptic, 1--1.2 X 0.3--0.5 mm, winged all around. Fl. Mar-Apr.
Forest edges in mountains, thickets on riverbanks; 200--2800 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan [Myanmar, Vietnam].
Source of dye, food, medicine, and perfume.