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Costus Species Botanical Description Botanical Description page for GingersRus plant database number " 3838 ".
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Costus plowmanii

Costus plowmanii Maas



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Photo# 16747 Specimen# R0
Costus plowmanii in Colombia, with Bruce Dunstan


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Photo# 16746 Specimen# R0
Costus plowmanii in Colombia, photo by Carla Black


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Photo# 16748 Specimen# R0
Costus plowmanii in Colombia photo by Bruce Dunstan


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Photo# 16932 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16931 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16930 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16934 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16933 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16929 Specimen# R3232
Costus plowmanii at El Refugio, Colombia


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Photo# 16944 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16949 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16936 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16937 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16947 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16939 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16938 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16954 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16940 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16951 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16946 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16945 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16948 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16952 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16955 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16956 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16953 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16935 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16950 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16943 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16942 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


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Photo# 16941 Specimen# R3241
Costus plowmanii near San Jose del Palmar, Choco, Colombia


BOTANICAL NAME: Costus plowmanii
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:II-Ornithophilus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 18, 1977
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Described and named by Maas in 1976, named after Dr. Tim Plowman.
NATURAL DISTRIBUTION:Collected in Colombia near Queremal, Cordillera Occidental, 1300-1500 m, El Valle.
HEIGHT:0 to 3 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

densely covered with erect and appressd stiff hair


0 to 0 cm0 to 20 cm
Sheathglabrous to sparsely strigulose or villose (full description differs). Flowering shoot 75 cm tall, sheaths purplish-red, obliquely truncate, 6-8 cm long and 2-3 cm wide, sparsely hirsute.

rather densely hirsute


0 to 0 cm 10 to 20 mm
Ligule

rather densely hirsute

obliquely truncate
1 to 10 mm 0 to 0 mm
Petiole

densely hirsute


10 to 20 mm 0 to 0 mm
Leaf 25-47 cm long, 11-18 cm wide, 8-9 plicate



narrowly elliptic-obovate to elliptic-obovate
25 to 47 cm 11 to 18 cm
...upper

glabrous




...under

densely hirsute-villose




...base



cunate


...apex



acuminate
5 to 20 mm
Inflorescence Basal - on a separate leafless shoot 75 cm tall.



ovoid to cylindric, obtuse
9 to 25 cm 5 to 8 cm
Bract not velutinous, margins not delacerating into fibers, callus inconspicuous 2-7 mm long
red
glabrous to sparsely puberulous abaxial
coriaceous
broadly obovate, obtuse
3.5 to 5.0 cm 2.5 to 4.0 cm
Appendage none




0.0 to 0.0 cm 0.0 to 0.0 cm
Bracteole

very sparsely puberulous

boat shape
2.3 to 2.9 cm 0.0 to 0.0 cm
Flower




0 to 0 cm 0 to 0 cm
Calyx 10-19 mm long

very sparsely puberulous

lobes shallowly triangular
1.0 to 1.4 cm 0.8 to 1.0 cm
Corolla tube 10 mm long, lobes 35 mm long, dorsal lobe 17-19 mm wide, lateral lobes 13-14 mm wide.
yellow



0.0 to 4.5 cm 0.0 to 0.0 cm
Labellum strongly grooved on dorsal side, lobes involute froming a small and tubular, 8-10 mm diam, upper margin 5-dentate, middle tooth filiform 4 mm long, rest irreg dentate-triangular 2-4 mm long
yellow


oblong-elliptic when spread
3.0 to 3.5 cm 1.7 to 2.0 cm
Stamen apex rounded, anther 7-11 mm long
yellow



3.3 to 4.0 cm 1.0 to 1.1 cm

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