Siemensia pendula (C. Wright ex Griseb.) Urb.

Portlandia pendula C. Wright; Griseb. Cat. PI. Cub. 126. 1866
Pendent shrub, 2 meters long or more, glabrous throughout; branches grayish-yellow, the branchlets quadrangular, slender, green; stipules annular, 2-3 mm. long, the lobes triangular, cuspidate; petioles 3-6 mm. long; leaf-blades ovate-oval or elliptic, 2-6 cm. long, 1-2.5 cm. wide, acute or abruptly acute or acuminate at the apex, the tip acute or obtuse, obtuse or acute at the base and decurrent, thin-coriaceous, dark-green on the upper surface and dull or sublustrous, mottled with bronze, slightly paler green beneath, the margin plane or subrevolute, the costa slender but prominent, the lateral veins slender, about 4 on each side, sometimes nearly obsolete; flowers fragrant, axillary, usually solitary, the pedicels slender, 1-2 cm. long, usually recurved, angulate; hypanthium 5 mm. long; calyx-lobes 5, linear-subulate or linear, 12-20 mm. long, acute or attenuate, green mottled with bronze; corolla 5-5.5 cm. long, white, the 5 lobes triangular, acute; capsule oval, 8-10 mm. long, 6-7 mm. wide, bisulcate, obscurely costate, green mottled with bronze; seeds only slightly compressed, reddish-brown, 1 mm. long.
Type locality: Western Cuba.
Distribution: On limestone cliffs, Pinar del Rio, Cuba.

Siemensia pendula là một loài thực vật có hoa trong họ Thiến thảo. Loài này được (C.Wright ex Griseb.) Urb. miêu tả khoa học đầu tiên năm 1923.