Description from Flora of China
Magnolia doltsopa (Buchanan-Hamilton ex Candolle) Figlar; M. excelsa Wallich; Michelia calcuttensis P. Parmentier; M. excelsa (Wallich) Blume ex Wight; M. manipurensis G. Watt ex Brandis; M. wardii Dandy; Sampacca excelsa (Wallich) Kuntze.
Trees, to 30 m tall. Young twigs, buds, petioles, and leaf blade abaxial surfaces grayish white appressed pubescent. Stipular scar ca. 1/5 as long as petiole. Petiole 1-2 cm; leaf blade elliptic, oblong-elliptic, or narrowly elliptic, 10-22 × 5-7 cm, secondary veins 10-14 on each side of midvein, reticulate veins dense, slender, abaxially grayish, adaxially prominent when dry, and densely firmly finely pubescent, base broadly cuneate or obtuse, margin slightly involute, apex acute to long acute. Brachyblasts densely appressed villous. Tepals white, narrowly obovate-spoon-shaped, 5-7 × ca. 2.5 cm, base clawed, apex rounded. Stamens 1.2-1.7 cm; connective exserted and forming a 1.5-2 mm sharp tip; anthers 0.8-1.2 cm. Gynophore 6-8 mm, densely grayish firmly puberulous; gynoecium narrowly ovoid, 1.5-2 cm; carpels 9-12 mm, densely grayish firmly pubescent; ovaries 4-5 mm; styles 5-7 mm. Fruit 4-7 cm; mature carpels nearly obovoid, ca. 1.5 cm, with residual appressed fine pubescence, apex acutely beaked. Fl. Apr-May, fr. Sep-Oct.
Evergreen broad-leaved forests; 1500-2400 m. S and SE Xizang, NW Yunnan [Bhutan, NE India, N Myanmar, Nepal].