The morphological characteristics of Curcuma
Morphological characteristics
The plant height is about 1 meter; the rhizome is cylindrical, fleshy, camphor-like, light yellow or white; the roots are slender or the ends are swollen into roots. Leaves erect, elliptic-oblong to oblong-lanceolate, 25-35 (60) cm long, 10-15 cm wide, often with central purple patches and hairless; petiole longer than leaves. Calyx roots alone, often first leaves, 10-20 cm long, loose, slender scaly sheath several; spikes broadly elliptic, 10-18 cm long, 5-8 cm wide; sepals Ovoid to obovate, slightly spreading, obtuse at top, green at lower part, red at top, upper and purple at upper part; calyx 1-1.2 cm long, white, 3-lobed apices; corolla tube 2-2.5 cm long, lobes oblong , yellow, unequal, 1 larger posterior, 1.5-2 cm long, apically vittae; lateral staminodes smaller than lip; yellow, nearly obovate, ca. 2 cm, width 1.2-1.5 Centimeter, apical to top; anthers ca. 4 mm, divergent base with divaricate margins; ovary glabrous. Flowering season: April-June.
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