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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 3351 ".
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Costus allenii

Costus allenii Maas



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Photo# 15237 Specimen# R2851
Costus allenii
From cultivated,


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Photo# 15238 Specimen# R2851
Costus allenii
From cultivated,


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Photo# 15239 Specimen# R2851
Costus allenii
From cultivated,


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Photo# 15240 Specimen# R2851
Costus allenii
From cultivated,


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Photo# 15241 Specimen# R2851
Costus allenii
From cultivated,


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Photo# 17525 Specimen# R0
Costus allenii detail of ligules and petioles with dense brown hairs, plant along old railroad trail, Gamboa, Panama.


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Photo# 17526 Specimen# R0
Costus allenii holotype collected by P. H. Allen near the Panama Canal.


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Photo# 15837 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15838 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15839 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15840 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15841 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15842 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 15843 Specimen# R0
Costus allenii from Rio Guanche, Panama


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Photo# 17527 Specimen# R0
Costus allenii near the Rio Piedra, Colon, Panama. Note the characteristic red ligules and thick hairs.


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Photo# 16017 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16018 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16019 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16020 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16021 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16022 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16023 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16024 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16025 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16026 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16027 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16028 Specimen# R3229
Costus allenii
From Colombia, Choc├│


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Photo# 16047 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16048 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16049 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16050 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16051 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16052 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16053 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16054 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16055 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16056 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16057 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16058 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16059 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16060 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 16061 Specimen# R3305
Costus allenii
From Colombia, Choc├│


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Photo# 17606 Specimen# R3350
Costus allenii
From Panama, Col├│n


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Photo# 17607 Specimen# R3350
Costus allenii
From Panama, Col├│n


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Photo# 17608 Specimen# R3350
Costus allenii
From Panama, Col├│n


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Photo# 17609 Specimen# R3350
Costus allenii
From Panama, Col├│n


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Photo# 17610 Specimen# R3350
Costus allenii
From Panama, Col├│n


BOTANICAL NAME: Costus allenii
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:I-Costus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 8 & No. 18, 1972-1977
SECONDARY SOURCES:Manual de Plantas de Costa Rica Vol II, 2003, Missouri Botanical Garden
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Maas named and described this species in Monograph No. 8. He indicates the hairiness and appendaged lower bracts are much like C. villosissimus, but upper bracts are not appendaged. Flowers are similar to C. laevis. Modified description in Monograph No. 18 and photograph on page 182. He also describes an aberrant form with longer ligule and plicate leaves found in Santa Fe Region, Veraguas, Panama.
NATURAL DISTRIBUTION:moist rain forests from sea level to 1000 meters, Panama, Colombia & Venezuela. Costa rica, between San Isidro de El General and Domincal n side of Coste├▒a range.
HEIGHT:1 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
ferruginous
strigose


0 to 0 cm 8 to 20 mm
Liguleshort, 2-10 mm
ferruginous
densely strigose

truncate
2 to 10 mm 0 to 0 mm
Petiole
ferruginous
densely strigose


10 to 20 mm 0 to 0 mm
Leaf



narrowly elliptic to narrowly obovate
15 to 41 cm 4 to 17 cm
...upper

strigose, hirsute or villose




...under

strigose, hirsute or villose




...base



cordate to cuneate


...apex



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



obtusely ovoid
4 to 8 cm 3 to 5 cm
Bract covered part red to pinkish white, callus 2-4 cm long
green to yellow-green

thick, coriaceous

3.0 to 5.0 cm 3.0 to 5.0 cm
Appendage none based on classification, but lowest bracts are appendaged




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole



boat shape
2.2 to 2.5 cm 0.0 to 0.0 cm
Flower
yellowish-white



0 to 0 cm 0 to 0 cm
Calyx 8-10 mm long
pinkish red



0.8 to 1.0 cm 0.0 to 0.0 cm
Corolla tube 15mm
yellowish white



3.5 to 4.0 cm 1.5 to 2.0 cm
Labellum large, striped with red or purple, middle lobe reflexed
yellowish white, yellow at center



5.0 to 5.5 cm 4.0 to 4.5 cm
Stamen apex red, recurved, anther 8 mm long
white, slightly tinged yellow



3.0 to 3.5 cm 1.0 to 1.3 cm

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