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FOC | Family List | FOC Vol. 19 | Acanthaceae | Ophiorrhiziphyllon

1. Ophiorrhiziphyllon macrobotryum Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 40: 76. 1871.

蛇根叶 she gen ye

Ophiorrhiziphyllon poilanei Benoist.

Herbs to 1 m tall, erect. Young branches terete to 4-angled, brown pubescent. Petiole 3-8 cm, sulcate, pubescent; leaf blade oblong-ovate, oblong-elliptic, or lanceolate, (8-)15-17 × (2-)5-7 cm, abaxially pale green and pubescent along veins, adaxially green and glabrous, secondary veins 7-10 on each side of midvein, base cuneate to subrounded and sometimes decurrent onto petiole, margin entire, apex acute. Rachises, peduncles, pedicels, bracts, and bracteoles brown pubescent with gland-tipped trichomes. Spikes or racemes terminal, unbranched or branched at base; peduncle 0-2 mm; bracts subulate to lanceolate, ca. 4 × 1 mm; bracteoles linear, ca. 1 mm. Pedicel 0-1 mm. Calyx ca. 5 mm, outside sparsely pubescent with gland-tipped trichomes; lobes triangular, ca. 2 mm, margin ciliate with gland-tipped trichomes. Corolla yellowish white, ca. 7 mm; lobes suborbicular, ca. 2 × 2 mm. Staminal filaments ca. 8 mm, glabrous; staminodes included. Ovary glabrous; style ca. 8 mm, glabrous. Capsule 3.5-5.5 mm. Fl. Oct-Feb, fr. Mar.

Dense forests, along streams; 100-1300 m. S Yunnan [Laos, Myanmar, Thailand, Vietnam].


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