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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 6100 ".
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Costus foliaceus

Costus foliaceus Lock & A.D.Poulsen


BOTANICAL NAME: Costus foliaceus
SUBGENUS:Costus
GROUP:
SECTION:
PRIMARY SOURCE USED FOR DESCRIPTION:A. D. Poulsen - Kew Bulletin, 1997
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Newly described species (1997) in Kew Bulletin, Vol. 52 (3), by A. D. Poulsen and J. M. Lock. Appearance is most similar to C. fissiligulatus. Illustrated there by line drawing and photos.
NATURAL DISTRIBUTION:Wet forest in gaps of open vegetation along streams, 1180-1250 m, Uganda.
HEIGHT:0 to 2 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




0 to 0 cm 0 to 0 mm
Ligule

glabrous
thin, scarious
biloged, obtuse apices
13 to 25 mm 0 to 0 mm
Petiole




4 to 6 mm 0 to 0 mm
Leaf



elliptic
0 to 30 cm 0 to 7 cm
...upper

glabrous




...under

a few hairs on margin




...base



cunate or rounded


...apex



acuminate
0 to 0 mm
Inflorescence terminal




0 to 0 cm 0 to 0 cm
Bract




0.0 to 0.0 cm 0.0 to 0.0 cm
Appendage progressively smaller to absent at top




0.0 to 9.0 cm 0.0 to 3.5 cm
Bracteole



boat shaped, bifid at apex
2.0 to 0.0 cm 0.7 to 0.0 cm
Flower one per bract




0 to 0 cm 0 to 0 cm
Calyx




2.0 to 0.0 cm 0.0 to 0.0 cm
Corolla
white



4.0 to 0.0 cm 1.5 to 0.0 cm
Labellum
white, yellow center


broadly obovate, 4 lobed
6.0 to 0.0 cm 4.5 to 0.0 cm
Stamen anthers 8-9 mm



petaloid, ovate, apex obtuse
3.2 to 0.0 cm 1.0 to 0.0 cm

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