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Datasheet for Costus talbotii

Plant Datasheet for Costus talbotii


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Photo# 11992 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11993 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11994 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11995 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11996 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11997 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11998 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 11999 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12000 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12001 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12002 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12003 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12004 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12005 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12006 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12007 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12008 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12009 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12010 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12011 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12012 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12013 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12014 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12015 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12016 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12017 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12018 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12019 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12020 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12021 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12022 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12023 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12024 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12025 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12026 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12497 Specimen# R2711
Costus talbotii
From cultivated,


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Photo# 12027 Specimen# R0
Costus talbotii at Smithsonian US Bot. Research Greenhouse, Washington, DC USBRG#96-280


CLICK HERE for a detailed botanical description and identification key for this species (opens in new window).
CLICK HERE to see a description of accession #R2711 . (opens in new window).

PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus talbotii
FORMAL SCIENTIFIC NAME: Costus talbotii Ridl.
STATUS :Accepted
CONTINENT: African
SYNONYMS:


BOTANICAL NOTES:
This African species is recognized in Paul Maas' monograph on African Costaceae, published on 16 December 2016. (Monograph of African Costaceae, H. Maas-van de Kamer, P.J.M. Maas, J.J. Wieringa, C.D. Specht, Blumea 61, 2016: 280 - 318, http://www.ingentaconnect.com/content/nhn/blumea/2016/00000061/00000003/art00010)

The subgenus of this species is undetermined, but Chelsea Specht studied the molecular phylogeny of this species and found it to be in a clade (jackknife value 68%) with Costus lateriflorus, which is subgenus Metacostus. (Molecular Phylogenetics and Evolution 21:3, 333-345)

The African Plant Database lists this species as accepted. Epiphytic herb with ramose wiry stem covered with very long cylindrical ligules, reaching nearly to the next leaf
(Costus talbotii Ridl. Not determined to subgenus, Floral type is Caldaven, collection studied was from Cameroon, Kress herbarium voucher #99-6354 at USBRG #96-280, GenBank Accession No. AY041039a & AY041083b)
Note that Hutchinson & Dalziel - Flora of West Tropical Africa, 1936 stated that a collection in Cameroon (Zenker 3823) cited by Ridley is NOT the same species, so possibly this specimen from Cameroon is from the same plant.

Le Jardin Ombragé - Botanical description of specimen of Costus talbotii from horticultural trade. I have not seen a full description of this species, so I cannot verify its identification.

Flora of West Tropical Africa, (1936) - remarkable for very long ligule from one leaf right to the base of the next leaf and in having axillary inflos. S. Nigeria, mentions one in Camaroon that is "not the same species".

ACCESSION NOTES:
R2711 was received in trade from another nursery. This collection has been vouchered at the UC Berkeley, Jepsen Herbarium, UC2045796.

GINGERSRUS CATALOG LISTING:
Costus talbotii - flower Costus talbotii is another of the semi-epiphytic Costus species from Africa, sometimes found in the horticultural trade in the US under the common name "Blushing Spiral". It was not an included species in Schumann's " Das Pflanzenreich", but probably should be placed the same as C. lateriflorus in subgenus metacostus. Dr. Paul Maas is working on a monograph of the African Costus and told me he is placeing this species as one of the epiphytic types.

It can bloom either basally from the rhizome or laterally from the leaf axil. The stems, foliage and habit are very similar to Costus lateriflorus, but the flowers are quite different in color and shape - white with a pink blush and yellow markings on the labellum and not so tubular at the base as Costus lateriflorus.

I tested some of it outdoors one winter for hardiness, and as expected it did not survive even in our mild winter of 2005 here in zone 8B Tallahassee. I am guessing it would only be hardy zone 10, possibly zone 9B. It should be grown in warm, humid conditions year round if possible, in very loose, well drained soil of planting medium with light fertilization. I like to grow it in hanging baskets in my greenhouse over winter then outdoors in the summer.


Costus talbotii Costus talbotii Costus talbotii Costus talbotii - basal bloom Costus talbotii - lateral bloom

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