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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 4619 ".
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Cheilocostus viridis

Costus viridis S.Q.Tong


BOTANICAL NAME: Cheilocostus viridis
SUBGENUS:n/a
GROUP:
SECTION:
PRIMARY SOURCE USED FOR DESCRIPTION:Flora of China
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Costus viridis S.Q.Tong, Acta Phytotax. Sin. 27: 289. 1989.

????? lu bao bi qiao jiang

Stems 2-3 cm. Leaf sheaths green, white sericeous; leaf blade subsessile, ovate or elliptic, 24-30 × 6-9 cm, adaxially glabrescent, abaxially densely sericeous, base cuneate or round-ed, apex shortly acuminate. Inflorescences terminal, broadly ovoid, ca. 6 × 5 cm; bracts imbricate, green, ovate or broadly so, 3.5-4 × 1.8-2.4 cm, leathery, margin membranous, apex brown, sharply pointed; bracteoles ovate, ca. 2.5 cm. Calyx green, ca. 2 cm, leathery, apex 3-lobed; lobes deltoid, golden, rigid, and glabrescent at apex. Corolla tube white, ca. 1 cm; lobes pink, central one elliptic, ca. 6 × 3.2 cm, lateral one ovate. Labellum pink, trumpet-shaped, 5-5.5 cm in diam., margin crisped. Stamen oblong, ca. 5 × 1.8 cm, glabrescent with pub-escent abaxial part. Ovary green, glabrescent. Fl. Jun.

Moist places in forests; ca. 1000 m. WYunnan (Wanding Zhen).
NATURAL DISTRIBUTION:moist forests, 1000 m, w Yunnan
HEIGHT:0 to 0 meters
Botanical Description for this Species
For illustrations or explanation of terminology, click on the linked plant part or column header.
Descriptions used for plant identification key are shown in BOLD.
Plant PartGeneralColorHairsTextureShape LengthWidth
Rhizome




0 to 0 cm0 to 0 cm
Sheath
green
sericeous, white


0 to 0 cm 0 to 0 mm
Ligule




0 to 0 mm 0 to 0 mm
Petiole




0 to 0 mm 0 to 0 mm
Leaf subsessile



ovate or elliptic
24 to 30 cm 6 to 9 cm
...upper

glabrescent




...under

densely sericious




...base



cuneate or rounded


...apex



shortly acuminate
0 to 0 mm
Inflorescence terminal on a leafy stem



broadly ovoid
0 to 6 cm 0 to 5 cm
Bract imbricate
green, apex brown

leathery, margin membranous
ovate or broadly ovate, apex sharply pointed
3.5 to 4.0 cm 1.8 to 2.4 cm
Appendage




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole



ovate
0.0 to 2.5 cm 0.0 to 0.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx apex 3-lobed, lobes golden, rigid
green

leathery

1.5 to 2.0 cm 0.0 to 0.0 cm
Corolla tube 1 cm
white tube, lobes pink


central lobe elliptic
0.0 to 6.0 cm 0.0 to 3.2 cm
Labellum margin crisped
pink


trumpet shaped
0.0 to 0.0 cm 5.0 to 5.5 cm
Stamen



oblong
0.0 to 5.0 cm 0.0 to 1.8 cm

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