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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 3595 ".
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Costus asplundii

Costus asplundii Maas



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Photo# 15396 Specimen# R3193
Collected along the Gualaquiza-Sigsig Road in Ecuador, believed to be C. asplundii.


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Photo# 15397 Specimen# R3193
Collected along the Gualaquiza-Sigsig Road in Ecuador, believed to be C. asplundii.


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Photo# 15398 Specimen# R3193
Collected along the Gualaquiza-Sigsig Road in Ecuador, believed to be C. asplundii.


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Photo# 15512 Specimen# R0
Costus asplundii at Atlanta Botanical Gardens


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Photo# 15513 Specimen# R0
Costus asplundii at Atlanta Botanical Gardens


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Photo# 15514 Specimen# R2966
Costus asplundii


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Photo# 15515 Specimen# R2966
Costus asplundii


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Photo# 15516 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15517 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15518 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15519 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15520 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15521 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15522 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15523 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15524 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15525 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15162 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15163 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15164 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15165 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15166 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15167 Specimen# R0
Costus asplundii at Lyon Arboretum, Hawaii


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Photo# 15168 Specimen# R0
Costus asplundii at John Mood's garden


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Photo# 15169 Specimen# R0
Costus asplundii at John Mood's garden


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Photo# 15170 Specimen# R0
Costus asplundii at John Mood's garden


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Photo# 15171 Specimen# R3125
Costus asplundii from Rio Mazon, Peru


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Photo# 15172 Specimen# R3125
Costus asplundii from Rio Mazon, Peru


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Photo# 15173 Specimen# R3125
Costus asplundii from Rio Mazon, Peru


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Photo# 15174 Specimen# R3125
Costus asplundii from Rio Mazon, Peru


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Photo# 15175 Specimen# R2976
Costus asplundii from John Banta


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Photo# 15176 Specimen# R2976
Costus asplundii from John Banta


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Photo# 11684 Specimen# R0
Costus asplundii at Atlanta Botanic Garden, Atlanta, GA ABG#92-0790


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Photo# 11685 Specimen# R0
Costus asplundii at Atlanta Botanic Garden, Atlanta, GA ABG#92-0790


BOTANICAL NAME: Costus asplundii
SUBGENUS:Costus
GROUP:1-bracts with appendage
SECTION:I-Costus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 18, 1977
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Maas reclassified this from a var. of C. guanaiensis var. asplundii to a separate species. Well characterized by white flowers, very wide calyx and long hairs near ligule.

I have seen several plants of this species in habitat in Ecuador and in cultivation from various sources. I have only seen it in flower one time - at Lyon Arboretum in Hawaii. Photos to the left.
NATURAL DISTRIBUTION:Ecuador along roadsides and streams between 1000 and 1400 meters.
HEIGHT:1 to 5 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
SheathThe ligule and adjacent part of the sheath is covered with very long needle-like hairs.

glabrous or strigose-hirsute


0 to 0 cm 0 to 35 mm
Liguleshort, 2-10 mm

densely strigose-hirsute towards margin

truncate
2 to 12 mm 0 to 0 mm
Petiole

glabrous or strigose-hirsute


5 to 10 mm 0 to 0 mm
Leaf lower side of ligule and leaves densely strigose-hirsute



narrowly elliptic
20 to 50 cm 5 to 8 cm
...upper
green
glabrous or sparsely covered with appressed hairs




...under
green
densely coverd with semi appress, brown stiff hair




...base



cuneate


...apex



shortly acuminate
0 to 10 mm
Inflorescence terminal on a leafy stem.



ovoid
6 to 15 cm 6 to 7 cm
Bract all bracts with foliaceous, green appendages, or apices of all bracts reflexed.
red
glabrous to puberulo-sericious
coriaceous
broadly ovate
2.5 to 4.0 cm 2.5 to 4.0 cm
Appendage reflexed in herbarium material
green
glabrous to puberulo-sericious
foliaceous
horizontally spreading, trianbular acute
1.0 to 4.0 cm 1.0 to 4.0 cm
Bracteole

glabrous to puberulo-sericious

boat shape
2.5 to 3.0 cm 2.5 to 3.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx
bright red
glabrous to dense semi-appress hair

lobes deltate to shallow triangular
1.5 to 2.0 cm 1.1 to 1.5 cm
Corolla tube 10-25 mm
white to pale pink



6.5 to 8.0 cm 0.0 to 0.0 cm
Labellum large, spreading limb
white, blotched with yellow in center


broadly ovate
0.0 to 7.5 cm 7.0 to 8.0 cm
Stamen anther 14-15 mm long
pale pink



4.5 to 6.0 cm 1.5 to 2.0 cm

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