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

1. Gymnostachyum subrosulatum H. S. Lo, Acta Phytotax. Sin. 17(4): 86. 1979.

矮裸柱草 ai luo zhu cao

Gymnostachyum kwangsiense H. S. Lo.

Herbs 20-40 cm tall. Stems short, hirsute. Leaves in a basal rosette; petiole 2-9(-14) cm; leaf blade suborbicular to broadly ovate, 5-16 × 3.5-11 cm, papery, abaxially subglabrous but midvein and secondary veins hirsute, adaxially slightly scabrous, secondary veins 7-9 on each side of midvein, base slightly cordate to rounded, margin entire or slightly sinuate, apex rounded to acute. Thyrses 10-35 cm, with 1-4 flowers per cyme; peduncle 8-19 cm; bracts subulate, ca. 2.5 mm, pilose, apex acute; bracteoles similar to bracts. Calyx 2.5-3 mm; lobes subulate, pilose. Corolla ca. 1.5 cm; lower lip patent, 3-lobed, lobes oblong-ovate and ca. 3 × 2 mm; upper lip triangular, ca. 5 mm, erect, 2-dentate. Stamens exserted; filaments 7-8 mm; anther thecae linear, parallel. Ovary 2-locular, with 4 ovules per locule; style 1.3-1.9 cm. Capsule linear, 1.3-1.6 cm, 8-seeded. Seeds ovate in outline, ca. 1 × 0.8 mm. Fl. Apr-May, fr. Jun-Sep.

● Limestone hills; 200-600 m. Guangxi.


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