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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 4610 ".
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Chamaecostus subsessilis

Chamaecostus subsessilis (Nees & Mart.) C.Specht & D.W.Stev.



Accession # R2839 identified as Chamaecostus subsessilis from Le Jardin Ombragé
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Photo# 13199 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13200 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13201 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13202 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13203 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13204 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13123 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13124 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13125 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13126 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13127 Specimen# R3248
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13205 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13206 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13207 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13208 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13128 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13129 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13130 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13131 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13132 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13133 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13134 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13135 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13136 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13137 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13138 Specimen# R3247
Chamaecostus subsessilis
From Brazil, DF


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Photo# 13209 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13210 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13211 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13212 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13139 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13140 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13141 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13142 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13143 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13144 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13145 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13146 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13147 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13148 Specimen# R3251
Chamaecostus subsessilis
From Brazil, Mato Grosso


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Photo# 13213 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13214 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13215 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13216 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13217 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13218 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13219 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13220 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13221 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13222 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13223 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13224 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13225 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13226 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13227 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13228 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13149 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13150 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13151 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13152 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13153 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13154 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13155 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13156 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13157 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13158 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


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Photo# 13159 Specimen# R2839
Chamaecostus subsessilis
From cultivated, origin assumed


BOTANICAL NAME: Chamaecostus subsessilis
SUBGENUS:
GROUP:Bracts appendaged
SECTION:
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 8, 1972
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Dr. Maas says it is a highly variable species, differences in leaf shape and hairiness. Maas has joined together with C. pumilus, C. acaulis, C. paucifolius, C. rosulifer, C. latifolius, C. pilossissimus, C. gagnepainii, C. steinbachii and C. kaempferoides. NOTE: listed in Flora Neotropica No 8 under former name, C. warmingii - Maas determined the earlier name, C. subsessilis is correct.

This is one of the few cultivated species in Costaceae that is deciduous with a natural winter dormancy. It is currently being studied and documented for what is called an "intermittent shoot" adaptation where the plant only sends up new shoots when the rainy season begins, but goes dormant in the dry season.

The photos to the left have been verified as Chamaecostus subsessilis. Specimen R2839 is the cultivated plant that was collected many years ago in Bolivia by Bob See. Specimen R3247 is from the Brazilian Cerrado, found in a small forest patch in a city park in Brasilia. Specimen R3248 is from a forest patch near Alta Floresta, Mato Grosso state, Brazil. Specimen R3251 is from the Cristalino Private Reserve in Brazil.
NATURAL DISTRIBUTION:Wet forests, terra firma or savannas in southern Brazil and Bolivia
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
Rhizomeroots fleshy with tubers




2 to 5 cm80 to 200 cm
Sheath

variable
membranaceous
obtuse at apex
2 to 6 cm 50 to 200 mm
Ligulevery short




0 to 1 mm 0 to 0 mm
Petiole absent




0 to 0 mm 0 to 0 mm
Leaf 4-6 rosulate



obovate to elliptic
5 to 30 cm 3 to 13 cm
...upper

variable




...under

variable




...base



cuneate


...apex



mucronate or shortly acuminate
0 to 0 mm
Inflorescence terminal on leafy stem




0 to 0 cm 0 to 0 cm
Bract
green
variable
herbaceous

0.0 to 4.0 cm 0.5 to 1.5 cm
Appendage appendage found on bract or apex reflexed
green

foliaceous
mucronate, triangular to deltate
0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole bicarinate at the abaxial side, 2 lobed at apex

variable
membranaceous
tubular
2.5 to 3.2 cm 0.0 to 0.0 cm
Flower 1 to 4 flowered
yellow



0 to 0 cm 0 to 0 cm
Calyx 21-41 mm long

variable
membranaceous to herbaceous

2.1 to 4.1 cm 0.0 to 0.0 cm
Corolla tube 25-30 mm
yellow
variable

mucronate
5.5 to 7.0 cm 0.0 to 0.0 cm
Labellum
yellow or slightly blotched orange at middle


broadly ovate
6.0 to 7.0 cm 7.0 to 9.5 cm
Stamen anther caudate at the apex
yellow


obovate
0.0 to 0.0 cm 0.0 to 0.0 cm

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