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Amomum longipetiolatum

Description from Flora of China

Elettariopsis longipetiolata (Merrill) D. Fang.

Plants 50--100 cm tall. Ligule orbicular, ca. 2 cm; petiole 2.5--12 cm; leaf blade adaxially green when fresh, becoming blue gray, abaxially pale green, oblong-lanceolate, 35--75 × 7--11 cm, adaxially glabrous, abaxially yellowish sericeous, base acute, apex acuminate. Spikes ellipsoid; peduncle short or absent; bracts 2--3 cm, submembranous. Flowers ca. 9 cm. Calyx ca. 3.5 cm, pubescent, apex 3-toothed; teeth oblong, ca. 3 mm. Corolla tube ca. 5.5 cm; lobes linear, ca. 2.5 cm × 4 mm, punctate. Lateral staminodes linear, 4--6 mm. Labellum white with yellowish middle and purple base, obovate, ca. 3.5 cm. Anther linear, 1.2--1.5 cm; connective appendage 3-lobed, lobes 3--4 × ca. 1 mm, central one erect, lateral ones falcate, expanding. Ovary oblong-ellipsoid, 3--4 mm, densely appressed pubescent. Capsule subglobose, ca. 2 cm in diam., brown pubescent; pedicel 1.5--2 cm. Fl. Apr--May. 2 n = 48*.

* Forests; 400--600 m. Guangxi, Hainan.


 

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