Bouvardia tenuifolia Standl.

Bouvardia tenuifolia Standley, sp. nov
Stems erect, herbaceous, or suffrutescent at the base, usually simple, slender, terete, glabrous or rarely hirtellous, the internodes elongate; stipule-sheath 3 mm. long or shorter, the lobes acute or short-cuspidate; leaves ternate, sessile or subsessile, linear, 3-9 cm. long, 0.63.5 mm. wide, long-attenuate at the apex, thick, often rigid, sometimes falcate, pale-green, glabrous or rarely soft-hirtellous, the costa prominent, the lateral veins obsolete, the margin revolute; inflorescence terminal, cymose-corymbose, dense, fewor many-flowered, about 5 cm. broad, the pedicels slender, 1-3 mm. long; hypanthium subglobose, 1-1.5 mm. long, scaberulous; calyx-lobes linear or subulate, 1-2.5 mm. long, hirsutulous or scaberulous; corolla red, scabro-puberulent outside, the tube 2-2.5 cm. long, 2-3 mm. thick above, with a villous ring within near the base, the lobes ovate-oval, 3-3.5 mm. long, obtuse or acutish, erect or ascending, papillose-puberulent within; anthers subsessile, included, 2.5 mm. long; style usually exserted.
Type collected on grassy hillsides near Guadalajara, Jalisco, October, 1889, C. G. Pr ingle 2Z92 (U. S. Nat. Herb. no. 49966).
Distribution: Jalisco, Tepic, and Sinaloa.

Bouvardia tenuifolia là một loài thực vật có hoa trong họ Thiến thảo. Loài này được Standl. mô tả khoa học đầu tiên năm 1921.