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Datasheet for Costus 'Tropicais'

Plant Datasheet for Costus 'Tropicais'

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Costus similar to  'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii  #990327  - Click to see full sized image
Photo# 12796 Accession# R0
Costus similar to 'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii #990327


Costus similar to  'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii  #990327  - Click to see full sized image
Photo# 12797 Accession# R0
Costus similar to 'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii #990327


Costus similar to  'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii  #990327  - Click to see full sized image
Photo# 12798 Accession# R0
Costus similar to 'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii #990327


Costus similar to  'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii  #990327  - Click to see full sized image
Photo# 12799 Accession# R0
Costus similar to 'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii #990327


Costus similar to  'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii  #990327  - Click to see full sized image
Photo# 12800 Accession# R0
Costus similar to 'Tropicais' from Gardner Waters at the National Tropical Botanical Garden, Kauai, Hawaii #990327


Costus 'Tropicais' - Click to see full sized image
Photo# 11823 Accession# R2907
Costus 'Tropicais'


Costus 'Tropicais' - Click to see full sized image
Photo# 11824 Accession# R2907
Costus 'Tropicais'


Costus 'Tropicais'  flower - Click to see full sized image
Photo# 11825 Accession# R2907
Costus 'Tropicais' flower


Costus 'Tropicais'  corolla - Click to see full sized image
Photo# 11826 Accession# R2907
Costus 'Tropicais' corolla


Costus 'Tropicais'  corolla - Click to see full sized image
Photo# 11827 Accession# R2907
Costus 'Tropicais' corolla


Costus 'Tropicais'  labellum - Click to see full sized image
Photo# 11828 Accession# R2907
Costus 'Tropicais' labellum


Costus 'Tropicais'  corolla - Click to see full sized image
Photo# 11829 Accession# R2907
Costus 'Tropicais' corolla


Costus 'Tropicais'  stamen - Click to see full sized image
Photo# 11830 Accession# R2907
Costus 'Tropicais' stamen


Costus 'Tropicais'  stamen - Click to see full sized image
Photo# 11831 Accession# R2907
Costus 'Tropicais' stamen


Costus 'Tropicais'  Unidentified Costus - per Dr. Maas, probably a natural hybrid of Costus spiralis and Costus arabicus, I am calling it - Click to see full sized image
Photo# 11832 Accession# R2907
Costus 'Tropicais' Unidentified Costus - per Dr. Maas, probably a natural hybrid of Costus spiralis and Costus arabicus, I am calling it


Costus 'Tropicais'  Unidentified Costus - per Dr. Maas, probably a natural hybrid of Costus spiralis and Costus arabicus, I am calling it - Click to see full sized image
Photo# 11833 Accession# R2907
Costus 'Tropicais' Unidentified Costus - per Dr. Maas, probably a natural hybrid of Costus spiralis and Costus arabicus, I am calling it


Costus 'Tropicais'  Bracts, bracteole and calyx - Click to see full sized image
Photo# 11834 Accession# R2907
Costus 'Tropicais' Bracts, bracteole and calyx


Costus 'Tropicais'  Bracts - Click to see full sized image
Photo# 11835 Accession# R2907
Costus 'Tropicais' Bracts


Costus 'Tropicais'  Bracts - Click to see full sized image
Photo# 11836 Accession# R2907
Costus 'Tropicais' Bracts


Costus 'Tropicais'  bracteole and calyx - Click to see full sized image
Photo# 11837 Accession# R2907
Costus 'Tropicais' bracteole and calyx


Costus 'Tropicais'  bracteole and calyx - Click to see full sized image
Photo# 11838 Accession# R2907
Costus 'Tropicais' bracteole and calyx


Costus 'Tropicais' - Click to see full sized image
Photo# 11839 Accession# R2907
Costus 'Tropicais'


Costus 'Tropicais' - Click to see full sized image
Photo# 11840 Accession# R2907
Costus 'Tropicais'


Costus 'Tropicais' by Jackie Petrov  - Click to see full sized image
Photo# 11841 Accession# R2907
Costus 'Tropicais' by Jackie Petrov


Costus 'Tropicais' - Click to see full sized image
Photo# 12508 Accession# R2907
Costus 'Tropicais'


Costus 'Tropicais' - Click to see full sized image
Photo# 12509 Accession# R2907
Costus 'Tropicais'


CLICK HERE to see a description of accession #R2907 . (opens in new window).
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PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus 'Tropicais'
FORMAL SCIENTIFIC NAME:
STATUS :
CONTINENT: Neotropical
SYNONYMS:


BOTANICAL NOTES:
To Paul & Hiltje Maas: I received the spent inflo. cone today from the lady in Texas, but I am not sure I have enough of the plant to make a herbarium specimen that would be of any use to you. I did break it down and examined and measured the bracts, bracteoles and calyx, and took close-up photos that I could send. The plant does not appear to be mature as you would find in the wild - the sheaths only 8 mm in diameter. Ligules from 4-8 mm long, truncate, petioles 6-8 mm long and 3-4 mm wide, all glabrous and medium green in color. The leaves measured from 11-19 cm long and 4-8.5 cm wide, green and glabrous both side, with no indument along the costa or margins or elsewhere. Base cuneate to cordate, apex acute to shortly acuminate, acumen barely 1 mm long. The bracts are glabrous, coreaceous, ovate, margins entire, reddish green - deeper red in the covered parts, green callus about 8 mm long, and bracts measuring 3.3-3.5 cm long by 3.2 cm wide. Bracteoles dark red, boat shaped, glabrous, all 2.5 cm long and 0.5 cm wide. Calyxthe same dark red color, glabrous except for a few hairs at the junction with the ovary, 1.5 cm long and 0.8 cm wide. I do not have the flowers, but from the pictures they appear nearly pure white, corolla lobes and labellums, with just a tint of pink on the lateral lobes and yellow in the throat. The labellum lobes are not spread very wide. I am attaching the picture again for your convenience and ready reference.

From Hiltje Maas: The Costus concerned has some characters of C. arabicus (long calyx, cordate leafbase) but also of C. spiralis (shape and orientation of the flower, and textuere of the leaves). May be a hybrid? Paul & Hiltje Maas

I have named this plant Costus 'Tropicais' after the internet name used by Jackie. This plant has characters of C. spiralis and C. arabicus. It grows to about 2 meters but can flower on stems 1 meter tall. Vegetative parts are glabrous, ligule is truncate, 10 mm, leaf base slightly cordate. Bracts are red, non-appendaged, bracteole 25 mm, calyx 20 mm. Flower is pale pink and extends at 0 degrees from bract, labellum intermediate between tubular and spreading, white to pale pink with yellow throat. Stamen pink to white at apex, apex is rounded, entire.

A specimen was found at NTBG 990327 Rec'vd by NTBG in 1999 as rhizomes from Waimea Arboretum collection # 80p662, parent was not wild source. Rec'vd from Gardner Waters ("#1"), California. "From a U. S. Nursery"…no other data. Thiis plant looks very much like the plant I am calling 'Tropicais'. NTBG had it tagged as Costus arabicus.

Cultivar Registry Photo at http://www.gingersrus.com/Registry/Costus_Tropicais.jpg

ACCESSION NOTES:


Jackie Petrov: I just talked to my aunt in Brazil. She said one of her relatives bought the plant at a nursery in Belo Horizonte. State of Minas Gerais. They were selling some medicinal plants and they said to use this costus for kidney ailments. You boil the leaves and stem and drink the tea. She has no idea what part of Brazil it originally came from. Oh well that's all I know. Jackie

I am going to call your Costus by a cultivar name since Dr. Maas was unable to determine a species for it. Paul Maas has been studying Costus since the early 70's. The Maas' are the ultimate authority on Costus, have written all the Costus monographs for the Central and South American species and have named 25 or so new species they found in their research. If they can't pin it to a certain species no one can. I am going to call it Costus 'Tropicais' in my records.

GINGERSRUS CATALOG LISTING:
Costus 'Tropicais' I received this plant as an unidentified Costus from Jackie Petrov in Houston who received it from her aunt in Brazil. After growing it out myself and examining the flower parts, I sent photos to Dr. Paul Maas who believes it is a hybrid of Costus spiralis and Costus arabicus. It has the inflorescence and upright flowers of C. spiralis and the cordate leaf base of C. arabicus. Whatever the identity, it is indeed a unique and a beautiful plant. I decided to name it 'Tropicais' after Jackie's GardenWeb user name, and I think the name fits very nicely.

Hardiness is at least zone 9 (and possibly zone 8B) as it has been grown in south Houston for several years. It has proven hardy here in Tallahassee (officially zone 8B) for several years. I grow it in fairly sunny conditions, 5+ hours of direct sun. It showed no signs of problems under those conditions. I am growing in the usual moist, rich, organic soil that so many gingers like.


Costus 'Tropicais'

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