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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 5234 ".
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Costus Maas species B


BOTANICAL NAME: Costus Maas species B
SUBGENUS:
GROUP:
SECTION:
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 8, 1972
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:The indument and leaves are close to C. villosissimus, but infl looks more like C. scaber or C. pulverulentus. Maas was unable to examine the floral structure closely and did not name this or place it.
NATURAL DISTRIBUTION:Panama
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

densely hirsute to glabrous


0 to 0 cm 10 to 15 mm
Ligule

densely hirsute

unequally 2-lobed
5 to 10 mm 0 to 0 mm
Petiole

densely ferrugineous hirsute


0 to 5 mm 0 to 0 mm
Leaf



narrowly elliptic
13 to 30 cm 4 to 7 cm
...upper

densely to sparsely hirsute




...under

densely to sparsely hirsute




...base



conspicuously cordate


...apex



shortly acuminate
0 to 0 mm
Inflorescence



ovoid
6 to 7 cm 4 to 5 cm
Bract

exposed glabrous to hirsute, covered glabrous
coriaceous
broadly ovate, acute or obtuse
0.0 to 0.0 cm 0.0 to 0.0 cm
Appendage




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole

glabrous

boat shape
0.0 to 2.1 cm 0.0 to 0.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx

puberulous towards apex

lobes shallowly triangular
1.1 to 1.2 cm 0.0 to 0.0 cm
Corolla tube 10 mm, lobes 40 mm long and 15 mm wide

glabrous

lobes narrowly ovate
0.0 to 5.0 cm 0.0 to 0.0 cm
Labellum


conglutinated

0.0 to 0.0 cm 0.0 to 0.0 cm
Stamen anther 8 mm



narrowly elliptic
0.0 to 2.5 cm 0.0 to 8.0 cm

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