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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 3759 ".
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Costus zingiberoides

Costus zingiberoides J.F.Macbr.



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Photo# 12164 Specimen# R0
Costus zingiberoides by Ray Lampert at Nat'l Botanic Garden of Belgium


BOTANICAL NAME: Costus zingiberoides
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:II-Ornithophilus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 8, 1972
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Characterized by linear leaves.
NATURAL DISTRIBUTION:Dense, moist forests in the Huallaga River Region of Peru
HEIGHT:0 to 1 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 puberlous


0 to 0 cm 5 to 8 mm
Ligule

hairy like sheaths

truncate
1 to 2 mm 0 to 0 mm
Petiole

densely minutely puberulous


1 to 4 mm 0 to 0 mm
Leaf linear, 1.5-2 cm wide



linear, grasslike
12 to 22 cm 1 to 2 cm
...upper

glabrous




...under

densely minutely puberulous




...base



rounded or cunate


...apex



gradually narrowed
0 to 0 mm
Inflorescence terminal on a leafy stem.



cylindric
0 to 1 cm 2 to 3 cm
Bract callus 3-5 mm long
reddish orange
glabrous
coriaceous
broadly ovate, obtuse
0.0 to 1.5 cm 2.0 to 3.0 cm
Appendage none




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole

sparsely minutely puberulous at base

boat shape,lobes shallowly triangular
0.7 to 1.3 cm 0.0 to 0.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx 7-9 mm long




0.0 to 0.0 cm 0.0 to 0.0 cm
Corolla ca 30 mm long
bright yellow
glabrous


0.0 to 3.0 cm 0.0 to 0.0 cm
Labellum


conglutinated

0.0 to 0.0 cm 0.0 to 0.0 cm
Stamen apex obtuse, anther 5 mm long



narrowly elliptic
2.0 to 2.5 cm 0.0 to 0.0 cm

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