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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 4606 ".
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Costus plicatus

Costus plicatus Maas



Accession # R3275 identified as Costus plicatus from La Gamba Biological Research Station, Costa Rica
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Photo# 12928 Specimen# R0
Costus plicatus at Finca Los Charcos, Costa Rica (Reinaldo & Catherine Aquilar's property)


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Photo# 12929 Specimen# R0
Costus plicatus at Finca Los Charcos, Costa Rica (Reinaldo & Catherine Aquilar's property)


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Photo# 11070 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11071 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica leaf


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Photo# 11072 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica acumen


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Photo# 11073 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11074 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11075 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11076 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11077 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11078 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11079 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 11080 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica leaf apex


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Photo# 11081 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracts


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Photo# 11082 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracts


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Photo# 11083 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracteole and calyx


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Photo# 11084 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracteole and calyx


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Photo# 11085 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracteole


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Photo# 11086 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica bracteole


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Photo# 11087 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica flower


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Photo# 11088 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica flower


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Photo# 11089 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica corolla lobes


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Photo# 11090 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica corolla lobes


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Photo# 11091 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica labellum


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Photo# 11092 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica labellum


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Photo# 11093 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica labellum


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Photo# 11094 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica stamen


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Photo# 11095 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica stamen


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Photo# 11096 Specimen# R3211
Costus plicatus at La Gamba Biological Research Station, Costa Rica


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Photo# 16154 Specimen# R0
Costus plicatus near finca of Reinaldo Aquilar


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Photo# 16155 Specimen# R0
Costus plicatus near finca of Reinaldo Aquilar


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Photo# 16156 Specimen# R0
Costus plicatus near finca of Reinaldo Aquilar


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Photo# 16336 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16337 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16338 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16339 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16340 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16341 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16342 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16343 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16344 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16345 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16346 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16347 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica, sharply plicate leaves


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Photo# 16348 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica


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Photo# 16349 Specimen# R3211
Costus plicatus at Tropenstation La Gamba, Costa Rica, note acuminate leaf apex


BOTANICAL NAME: Costus plicatus
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:II-Ornithophilus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 18, 1977
SECONDARY SOURCES:Manual de Plantas de Costa Rica Vol II, 2003, Missouri Botanical Garden
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Described and named by Maas in 1976. Closely related to Costus nitidus, but readily recognized by much wider, strongly plicate leaves with more abrupt apex.
NATURAL DISTRIBUTION:Costa Rica and Panama in forests from sea level to 750 m
HEIGHT:0 to 4 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

glabrous


0 to 0 cm 6 to 11 mm
Ligulelong, over 15 mm

glabrous

very obliquely truncate
25 to 60 mm 0 to 0 mm
Petiole

glabrous


15 to 20 mm 0 to 0 mm
Leaf strongly 6-8 plicate, leaf margins densely covered with long silky hairs but often becoming glabrous with age.



asymetrical, narrowly elliptic to narrowly obovate
25 to 31 cm 8 to 13 cm
...upper

glabrous




...under

glabrous or very sparsely minutely puberulous




...base



attenuate


...apex



long-acuminate
15 to 25 mm
Inflorescence terminal on a leafy stem.



cylindric to ovoid, acute
5 to 15 cm 3 to 4 cm
Bract callus yellow to green, 5-11 mm long
pink to red
glabrous
thick, coriaceous
broadly ovate-deltate, acute
2.5 to 4.0 cm 2.0 to 3.0 cm
Appendage none




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole
pink
glabrous

boat shape
1.7 to 1.8 cm 0.0 to 0.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx
pink
glabrous

lobes very shallowly triangular
0.7 to 1.0 cm 0.7 to 0.8 cm
Corolla tube 15 mm long, lobes 30 mm long, dorsal 15 mm wide, lateral lobes 11 mm wide
yellow
glabrous


0.0 to 4.5 cm 0.0 to 0.0 cm
Labellum lateral lobes involute forming a tube 9-10 mm diam, upper margin 5-lobulate,
yellow


oblong ovate when spread, lobules shallow triangul
0.0 to 3.2 cm 0.0 to 2.0 cm
Stamen slightly exceeding labellum, anther 11 mm long by 4 mm wide
yellow



0.0 to 3.7 cm 0.0 to 1.2 cm

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