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Costus zingiberoides

Costus zingiberoides J.F.Macbr.

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Photo# 12164 Specimen# R0 Costus zingiberoides by Ray Lampert at Nat'l Botanic Garden of Belgium

BOTANICAL NAME: Costus zingiberoides
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:II-Ornithophilus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 8, 1972
SECONDARY SOURCES:
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Characterized by linear leaves.
NATURAL DISTRIBUTION:Dense, moist forests in the Huallaga River Region of Peru
HEIGHT:0 to 1 meters

Botanical Description for this Species
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Descriptions used for plant identification key are shown in BOLD.

Plant Part	General	Color	Hairs	Texture	Shape	Length	Width
Rhizome						0 to 0 cm	0 to 0 cm
Sheath			densely puberlous			0 to 0 cm	5 to 8 mm
Ligule			hairy like sheaths		truncate	1 to 2 mm	0 to 0 mm
Petiole			densely minutely puberulous			1 to 4 mm	0 to 0 mm
Leaf	linear, 1.5-2 cm wide				linear, grasslike	12 to 22 cm	1 to 2 cm
...upper			glabrous
...under			densely minutely puberulous
...base					rounded or cunate
...apex					gradually narrowed	0 to 0 mm
Inflorescence	terminal on a leafy stem.				cylindric	0 to 1 cm	2 to 3 cm
Bract	callus 3-5 mm long	reddish orange	glabrous	coriaceous	broadly ovate, obtuse	0.0 to 1.5 cm	2.0 to 3.0 cm
Appendage	none					0.0 to 0.0 cm	0.0 to 0.0 cm
Bracteole			sparsely minutely puberulous at base		boat shape,lobes shallowly triangular	0.7 to 1.3 cm	0.0 to 0.0 cm
Flower						0 to 0 cm	0 to 0 cm
Calyx	7-9 mm long					0.0 to 0.0 cm	0.0 to 0.0 cm
Corolla	ca 30 mm long	bright yellow	glabrous			0.0 to 3.0 cm	0.0 to 0.0 cm
Labellum				conglutinated		0.0 to 0.0 cm	0.0 to 0.0 cm
Stamen	apex obtuse, anther 5 mm long				narrowly elliptic	2.0 to 2.5 cm	0.0 to 0.0 cm

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