Click on logo above to go to GingersRus HOMEPAGE. Botanical Description page for GingersRus plant database number " 4605 ".

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Costus cordatus

Costus cordatus Maas

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Photo# 15103 Specimen# R0 Costus cordatus from Colombia, El Valle area, photo by Carla Black

Photo# 15104 Specimen# R0 Costus cordatus from Colombia, El Valle area, photo by Carla Black

Photo# 15105 Specimen# R0 Costus cordatus from Colombia, El Valle area, photo by Carla Black

BOTANICAL NAME: Costus cordatus
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:Described and named by Maas in 1976. Related to C. chartaceous and C. plicatus, some variation in specimens.
NATURAL DISTRIBUTION:Only in El Valle, Colombia, secondary lowland forest along the road Cali Buenaventura, near km 85.
HEIGHT:0 to 2 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 Part	General	Color	Hairs	Texture	Shape	Length	Width
Rhizome						0 to 0 cm	0 to 0 cm
Sheath			glabrous			0 to 0 cm	0 to 15 mm
Ligule	long, over 15 mm, 2 lobed, unequally and de		sparsely puberulous except margins		lobes rounded	15 to 20 mm	0 to 0 mm
Petiole			densely puberulo-sericeous			5 to 15 mm	0 to 0 mm
Leaf	8-10 plicate, costa sericeous upper side to densely sericeous on underside.				narrowly elliptic	35 to 40 cm	12 to 13 cm
...upper			glabrous
...under			sericeous on costa, veins and margins
...base					cordate
...apex					acuminate	0 to 20 mm
Inflorescence	terminal on a leafy stem.				cylindric	0 to 10 cm	0 to 4 cm
Bract	callus green, 7-9 mm	dark red	puberulo-sericeous	thick, coriaceous	broadly ovate triangular	3.0 to 4.0 cm	2.5 to 3.0 cm
Appendage	none					0.0 to 0.0 cm	0.0 to 0.0 cm
Bracteole		red	puberulous		boat shape	2.0 to 2.3 cm	0.0 to 0.0 cm
Flower						0 to 0 cm	0 to 0 cm
Calyx		red	sparsely puberulous			1.0 to 1.3 cm	0.6 to 0.8 cm
Corolla	tube 13-20mm		glabrous			0.0 to 0.0 cm	0.0 to 0.0 cm
Labellum	lateral lobes involute and forming a tube ca 12 mm diam.	yellow			oblong-ovate	4.0 to 4.3 cm	2.5 to 2.7 cm
Stamen	anther 10-11 mm by 4 mm	yellow			apex slightly rounded	3.5 to 4.0 cm	1.1 to 1.2 cm

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