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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 7372 ".
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Costus macranthus

Costus macranthus K.Schum.


BOTANICAL NAME: Costus macranthus
SUBGENUS:
GROUP:
SECTION:
PRIMARY SOURCE USED FOR DESCRIPTION:Lock - Flora of Tripical East Africa, 1985
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:See similar Costus spectabilis. C. macranthus has larger flowers that are formed before or during leaf production.
NATURAL DISTRIBUTION:Deciduous woodland and wooded grassland, often on rocky hillsides, 250-1700 m, Malawi, Mozanbique, E. Zambia, NE Zimbabwe.
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
brown



0 to 0 cm4 to 7 cm
Sheath




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 4 leaves flat to ground, with a few reduced leaves.



obovate
8 to 19 cm 8 to 16 cm
...upper
green with pink margin
glabrous




...under

pubescent




...base



cunate


...apex



obtuse
0 to 0 mm
Inflorescence developing with leaves or just before and continuing, 6-10 fl, one at a time




0 to 0 cm 0 to 0 cm
Bract


delicate

1.7 to 0.0 cm 0.5 to 0.0 cm
Appendage




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole




0.0 to 0.0 cm 0.0 to 0.0 cm
Flower flowers large, >12 cm




0 to 0 cm 0 to 0 cm
Calyx

glabrous
delicate
spathaceous
4.5 to 5.0 cm 0.0 to 0.0 cm
Corolla
yellow



6.0 to 8.0 cm 0.0 to 0.0 cm
Labellum
yellow



8.0 to 11.0 cm 0.0 to 0.0 cm
Stamen thecae 9-13 mm




0.0 to 0.0 cm 0.0 to 0.0 cm

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