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Botanical Description page for GingersRus plant database number " 3599 ".

You can select the botanical description of a different plant from this list: Click arrow to see list, then click GO Chamaecostus congestiflorus Chamaecostus curcumoides Chamaecostus cuspidatus Chamaecostus fragilis Chamaecostus fusiformis Chamaecostus lanceolatus Chamaecostus subsessilis Cheilocostus globosus Cheilocostus lacerus Cheilocostus speciosus Cheilocostus sopuensis Costus "El Whiskey" Costus sp. from Cabo Matapalo Costus acreanus Costus afer Costus albus Costus allenii Costus amazonicus Costus arabicus Costus asplundii Costus asteranthus Costus barbatus Costus beckii Costus bracteatus Costus chartaceus Costus claviger Costus claviger aff Costus comosus var. bakeri Costus comosus Costus cordatus Costus cupreifolius Costus curvibracteatus Costus deistelii Costus dewevrei Costus dirzoi Costus dubius Costus erythrocoryne Costus erythrophyllus Costus erythrothyrsus Costus fissiligulatus Costus foliaceus Costus gabonensis Costus geothyrsus Costus glaucus Costus guanaiensis Costus guanaiensis var. macrostrobilacius Costus guanaiensis var. tarmicus Costus juruanus Costus laevis Costus lasius Costus lateriflorus Costus letestui Costus leucanthus Costus ligularis Costus lima Costus longebracteolatus Costus lucanusianus var. major Costus lucanusianus Costus Maas species A Costus Maas species B Costus maboumiensis Costus macranthus Costus maculatus Costus malortieanus Costus montanus Costus nitidus Costus nudicaulis Costus oblongus Costus osae Costus phaeotrichus Costus pictus Costus plicatus Costus plowmanii Costus potierae Costus productus Costus pulverulentus Costus quasi-appendiculatus Costus ricus Costus sarmentosus Costus scabe Costus spectabilis Costus spicatus Costus spiralis Costus sprucei Costus stenophyllus Costus subbiflorus Costus tappenbeckianus Costus tonkinensis Costus vargasii Costus varzearum Costus villosissimus Costus vinosus Costus violaceus Costus viridis Costus wilsonii Costus woodsonii Costus zamoranus Costus zingiberoides Paracostus englerianus Paracostus paradoxus

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Costus glaucus

Costus glaucus Maas

Accession # R3271 identified as Costus glaucus from Cerro Nara area, Costa Rica
Accession # R3270 identified as Costus glaucus from Along Quebrada Grande in La Cangreja, Costa Rica
Accession # R3269 identified as Costus glaucus from La Gamba Biological Research Station, Costa Rica
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Photo# 12358 Specimen# R0 Costus glaucus at Alto Concepcion, Costa Rica glaucus new shoot and stem (has powdery white substance that rubs off)

Photo# 10791 Specimen# R0 Costus glaucus on trail near Rancho Quemado, Osa Peninsula, Costa Rica In natural habitat,

Photo# 10792 Specimen# R0 Costus glaucus on trail near Rancho Quemado, Osa Peninsula, Costa Rica In natural habitat,

Photo# 10793 Specimen# R0 Costus glaucus on trail near Rancho Quemado, Osa Peninsula, Costa Rica In natural habitat,

Photo# 10794 Specimen# R0 Costus glaucus on trail near Rancho Quemado, Osa Peninsula, Costa Rica In natural habitat,

Photo# 10795 Specimen# R0 Costus glaucus on trail near Rancho Quemado, Osa Peninsula, Costa Rica In natural habitat,

Photo# 12359 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica bract, bracteole and calyx

Photo# 12360 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica corolla lobes

Photo# 12361 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica corolla lobes

Photo# 12362 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica flower

Photo# 12363 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica labellum

Photo# 12364 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica inflo. of plant in front of Cerro Nara Lodge

Photo# 12365 Specimen# R0 Costus glaucus at Cerro Nara, Costa Rica flower

Photo# 10796 Specimen# R0 Costus glaucus at Fairchild Tropical Gardens, Miami, Florida

Photo# 10797 Specimen# R0 Costus glaucus at Fairchild Tropical Gardens, Miami, Florida ligule

Photo# 10798 Specimen# R0 Costus glaucus at Fairchild Tropical Gardens, Miami, Florida

Photo# 10799 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10800 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10801 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10802 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10803 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10804 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10805 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica flower

Photo# 10806 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica ligule

Photo# 10807 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica glaucus new shoot

Photo# 10808 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica corolla lobe

Photo# 10809 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica labellum

Photo# 10810 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica labellum

Photo# 10811 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica labellum and stamen

Photo# 10812 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica stamen

Photo# 10813 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica stamen

Photo# 10814 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica inflorescense

Photo# 10815 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica ligule

Photo# 10816 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica over 20 feet tall!

Photo# 10817 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica leaves

Photo# 10818 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica inflorescense

Photo# 10819 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica bracts

Photo# 10820 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica bracts

Photo# 10821 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica bracteole and calyx

Photo# 10822 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica bracteole

Photo# 10823 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica bracteole

Photo# 10824 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica calyx

Photo# 10825 Specimen# R0 Costus glaucus at La Gamba Biological Research Station, Costa Rica calyx

Photo# 12366 Specimen# R0 Costus glaucus at PN Manuel Antonio, Costa Rica ligule

Photo# 12367 Specimen# R0 Costus glaucus at Quebrada Grande, La Cangreja, Costa Rica ligule

Photo# 12368 Specimen# R0 Costus glaucus at Quebrada Grande, La Cangreja, Costa Rica old inflo. (same plant as seen on Island in May without flowers)

Photo# 12668 Specimen# R0 Costus glaucus at Dave Skinner at Waimea Audubon Center, Oahu, Hawaii Audubon Center, Oahu, Hawaii #86P447

Photo# 17979 Specimen# R0 Costus glaucus at Rafiki, near Quepos, Costa Rica - showing powdery white covering

Photo# 17980 Specimen# R0 Costus glaucus at Rafiki, near Quepos, Costa Rica - ligule

Photo# 18025 Specimen# R3363 Costus glaucus at CATIE type locality.

Photo# 18026 Specimen# R3363 Costus glaucus at CATIE type locality.

Photo# 18027 Specimen# R3363 Costus glaucus at CATIE type locality - new shoot

Photo# 18028 Specimen# R3363 Costus glaucus at CATIE type locality - ligules

BOTANICAL NAME: Costus glaucus
SUBGENUS:Costus
GROUP:2-bracts not appendaged
SECTION:I-Costus
PRIMARY SOURCE USED FOR DESCRIPTION:Maas, Flora Neotropica No. 18
SECONDARY SOURCES:Manual de Plantas de Costa Rica Vol II, 2003, Missouri Botanical Garden
LAST UPDATED:
NOTES AND DISTINGUISHING CHARACTERISTICS:Attractive in cultivation for its glaucus stems and leaves. Young plants are completely glaucus, in older plants only the bracts, sheaths, and lower sides of leaves are glaucus.
NATURAL DISTRIBUTION:Rather rare in Panama, Costa Rica and Colombia.
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 Part	General	Color	Hairs	Texture	Shape	Length	Width
Rhizome						0 to 0 cm	0 to 0 cm
Sheath			glabrous			0 to 0 cm	6 to 20 mm
Ligule	long, over 15 mm				unequally 2 lobed, lobes rounded	17 to 55 mm	0 to 0 mm
Petiole			glabrous			5 to 20 mm	0 to 0 mm
Leaf					narrowly ovate to narrowly obovate	20 to 43 cm	5 to 14 cm
...upper		glaucus when young	glabrous
...under		glaucus	glabrous
...base					cunate to rounded
...apex					acute to acuminate	0 to 10 mm
Inflorescence	terminal on a leafy stem.				ovoid to cylindrical	6 to 16 cm	3 to 8 cm
Bract	callus absent,	glaucus to pale green, pinkish covered part	glabrous adaxial, scabrid hairs abaxial	thick, coriaceous	ovate, obtuse	4.5 to 6.0 cm	3.0 to 4.0 cm
Appendage	none					0.0 to 0.0 cm	0.0 to 0.0 cm
Bracteole			sparsely to densely puberulous		boat shape	2.2 to 2.7 cm	0.0 to 0.0 cm
Flower						0 to 0 cm	0 to 0 cm
Calyx		pink	sparsely to densely puberulous		lobes shallow triangular to to deltate	0.7 to 1.4 cm	0.9 to 1.1 cm
Corolla	tube 15 mm, lobes 55 mm	yellowish-red				0.0 to 7.0 cm	0.0 to 0.0 cm
Labellum	lobe trilobulate	white (yellow), red veined lobes, center yellow			broadly obovate when spread	0.0 to 7.0 cm	0.0 to 5.0 cm
Stamen		pinkish to yellowish-white				0.0 to 5.0 cm	0.0 to 1.3 cm

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