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Amomum tuberculatum

Description from Flora of China

Plants 70--80 cm tall. Ligule entire, 2--5 mm; petiole to 3 cm; leaf blade ovate or lanceolate, 5--45 × 2.5--8 cm, glabrous, base rounded or cuneate, apex caudate. Spikes obovoid, ca. 30-flowered; peduncle embedded in ground, 1.5--7.5 cm; bracts red, lanceolate, 3.3--3.9 × 0.8--1.2 cm; bracteoles red with yellowish apex, tubular, ca. 2 cm. Calyx red with yellowish apex, 2.7--3 cm, split on 1 side, apex 2- or 3-toothed. Corolla tube 2.3--2.5 cm; lobes oblong, ca. 3 cm × 6--7 mm, central one yellow with purple markings, 1--1.2 cm wide. Lateral staminodes absent. Labellum red veined each side of midvein, obovate, 2.8--3.2 × 1.5--1.7 cm, densely tuberculate toward throat, base adnate to filament forming a tube ca. 3 mm, distal margin crisped, apex entire. Filament ca. 1.1 cm; connective appendage yellowish, 3-lobed, central lobe 6--7 × 5--7 mm. Capsule subglobose, 1.2--1.7 cm in diam., obscurely 3-angled. Fl. May, fr. Sep.

* Forests; 1500--1600 m. Guangxi.


 

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