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Datasheet for Costus maculatus

Plant Datasheet for Costus maculatus

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Costus maculatus syn. of C. dubius, from Tom Wood's prints William Roscoe print - Click to see full sized image
Photo# 11237 Accession# R0
Costus maculatus syn. of C. dubius, from Tom Wood's prints William Roscoe print


Costus maculatus syn. of C. dubius, - Click to see full sized image
Photo# 12313 Accession# R0
Costus maculatus syn. of C. dubius,


Costus maculatus syn. of C. dubius, - Click to see full sized image
Photo# 12417 Accession# R0
Costus maculatus syn. of C. dubius,


Costus maculatus syn. of C. dubius, at Dave Skinner at Lyon Arboretum, Oahu, Hawaii  Arboretum, Oahu, Hawaii - Click to see full sized image
Photo# 12699 Accession# R0
Costus maculatus syn. of C. dubius, at Dave Skinner at Lyon Arboretum, Oahu, Hawaii Arboretum, Oahu, Hawaii


Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii - Click to see full sized image
Photo# 12700 Accession# R0
Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii


Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii - Click to see full sized image
Photo# 12701 Accession# R0
Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii


Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii - Click to see full sized image
Photo# 12702 Accession# R0
Costus maculatus syn. of C. dubius, at Lyon Arboretum, Oahu, Hawaii


Costus maculatus compared to Costus dubius - Click to see full sized image
Photo# 15221 Accession# R0
Costus maculatus compared to Costus dubius


Costus maculatus syn. of C. dubius,  USBRG#94-671 - Click to see full sized image
Photo# 11204 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671


Costus maculatus syn. of C. dubius,  USBRG#94-671 - Click to see full sized image
Photo# 11205 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671


Costus maculatus syn. of C. dubius,  USBRG#94-671  - leaves from basal shoot - Click to see full sized image
Photo# 11206 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - leaves from basal shoot


Costus maculatus syn. of C. dubius,  USBRG#94-671  - inflorescence cone - Click to see full sized image
Photo# 11207 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - inflorescence cone


Costus maculatus syn. of C. dubius,  USBRG#94-671  - flower parts - Click to see full sized image
Photo# 11208 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - flower parts


Costus maculatus syn. of C. dubius,  USBRG#94-671  - bracts - Click to see full sized image
Photo# 11209 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - bracts


Costus maculatus syn. of C. dubius,  USBRG#94-671  - bracts - Click to see full sized image
Photo# 11210 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - bracts


Costus maculatus syn. of C. dubius,  USBRG#94-671  - labellum - Click to see full sized image
Photo# 11211 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - labellum


Costus maculatus syn. of C. dubius,  USBRG#94-671  - labellum - Click to see full sized image
Photo# 11212 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - labellum


Costus maculatus syn. of C. dubius,  USBRG#94-671  - corolla lobes - Click to see full sized image
Photo# 11213 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - corolla lobes


Costus maculatus syn. of C. dubius,  USBRG#94-671  - bracteole and 2 calyx - Click to see full sized image
Photo# 11214 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - bracteole and 2 calyx


Costus maculatus syn. of C. dubius,  USBRG#94-671  - bracteole and 2 calyx - Click to see full sized image
Photo# 11215 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - bracteole and 2 calyx


Costus maculatus syn. of C. dubius,  USBRG#94-671  - calyx - Click to see full sized image
Photo# 11216 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - calyx


Costus maculatus syn. of C. dubius,  USBRG#94-671  - stamen - Click to see full sized image
Photo# 11217 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - stamen


Costus maculatus syn. of C. dubius,  USBRG#94-671  - stamen - Click to see full sized image
Photo# 11218 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - stamen


Costus maculatus syn. of C. dubius,  USBRG#94-671  - stamen - Click to see full sized image
Photo# 11219 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - stamen


Costus maculatus syn. of C. dubius,  USBRG#94-671  - style - Click to see full sized image
Photo# 11220 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - style


Costus maculatus syn. of C. dubius,  USBRG#94-671  - stamen and labellum - Click to see full sized image
Photo# 11221 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - stamen and labellum


Costus maculatus syn. of C. dubius,  USBRG#94-671  - flowers - Click to see full sized image
Photo# 11222 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - flowers


Costus maculatus syn. of C. dubius,  USBRG#94-671  - labellum - Click to see full sized image
Photo# 11223 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - labellum


Costus maculatus syn. of C. dubius,  USBRG#94-671  - flowers - Click to see full sized image
Photo# 11224 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - flowers


Costus maculatus syn. of C. dubius,  USBRG#94-671  - labellum - Click to see full sized image
Photo# 11225 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - labellum


Costus maculatus syn. of C. dubius,  USBRG#94-671  - basal inflor. - Click to see full sized image
Photo# 11226 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - basal inflor.


Costus maculatus syn. of C. dubius,  USBRG#94-671  - flowers - Click to see full sized image
Photo# 11227 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - flowers


Costus maculatus syn. of C. dubius, - Click to see full sized image
Photo# 11228 Accession# R2258
Costus maculatus syn. of C. dubius,


Costus maculatus syn. of C. dubius,  ligule - Click to see full sized image
Photo# 11229 Accession# R2258
Costus maculatus syn. of C. dubius, ligule


Costus maculatus syn. of C. dubius, - Click to see full sized image
Photo# 11230 Accession# R2258
Costus maculatus syn. of C. dubius,


Costus maculatus syn. of C. dubius,  bract, bracteole, calyx - Click to see full sized image
Photo# 11231 Accession# R2258
Costus maculatus syn. of C. dubius, bract, bracteole, calyx


Costus maculatus syn. of C. dubius,  bracteoles, calyx - Click to see full sized image
Photo# 11232 Accession# R2258
Costus maculatus syn. of C. dubius, bracteoles, calyx


Costus maculatus syn. of C. dubius,  bracteoles, calyx - Click to see full sized image
Photo# 11233 Accession# R2258
Costus maculatus syn. of C. dubius, bracteoles, calyx


Costus maculatus syn. of C. dubius,  USBRG#94-671  - ligule - Click to see full sized image
Photo# 11234 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - ligule


Costus maculatus syn. of C. dubius,  USBRG#94-671  - sheaths - Click to see full sized image
Photo# 11235 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 - sheaths


Costus maculatus syn. of C. dubius,  USBRG#94-671  - - Click to see full sized image
Photo# 11236 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 -


Costus maculatus syn. of C. dubius,  USBRG#94-671  - - Click to see full sized image
Photo# 12416 Accession# R2258
Costus maculatus syn. of C. dubius, USBRG#94-671 -


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CLICK HERE to see a description of accession #R2258 . (opens in new window).
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PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus maculatus
FORMAL SCIENTIFIC NAME: Costus maculatus Roscoe
STATUS :synonym
CONTINENT: African
SYNONYMS:
Costus afer, Costus afer var. maculatus,

BOTANICAL NOTES:
This African species is placed in synonymy with Costus dubius (PID3597) 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 African Plant Database lists this species as accepted but uncertain. A synonym listed is Costus afer var. maculatus. Biology : New combination by Baker, Fl. Trop. Afr. 7: 299, 1898. According to him, this variety differs from C. afer by the flowering stems produced direct from the root [rhizome], covered by imbricate leaf sheaths. Cited by him from Sierra Leone

There are several African species that are easily confused with each other as they are superficially similar looking. The various names and PIDs where information is stored on this website are as follows:
Costus afer -PID 3430 - 2 flowers per bract
Costus albus -PID 4868 - single flower per bract
Costus dallachyi - on tag at National Tropical Botanic Garden
Costus deistelii -PID 3754
Costus dinklagei -PID 7279
Costus dubius -PID3597 - single flower per bract
Costus maculatus -PID 3604 - 2 flowers per bract
Costus megalobractea -PID 3755
These plants have also been circulated from Europeon botanical gardens originating at the Severoceska Bot. Garden in Czech Republic under the name Tapeinochilos spectabile - believed to actually be Costus maculatus.

W3Tropicos - http://mobot.mobot.org/W3T/Search/pick.html - Costus maculatus Ker Gawl. Author(s): ORSTOM Date: 1988 Publication: List of Vascular Plants of Gabon with Synonymy. There is also a Costus afer var. maculatus Baker. Specimen located at Cameroon Southwest: Korup National Park, 50 m, 04.55N 08.50E, 6-16 July 1983, D. Thomas 2225 (MO).

Described in Koechlin's Flore du Gabon, listed as syn. For C. afer var. maculatus.

Schumann describes this species and places in subgenus Eucostus - Das Pflanzenreich IV, 1904.

ACCESSION NOTES:
R2258 was received from the Smithsonian greenhouses, USBRG#1994-671. This collection has been vouchered at the UC Berkeley, Jepsen Herbarium, UC2045784.

GINGERSRUS CATALOG LISTING:
Costus maculatus flowers Costus maculatus is a little known Costus from east central Africa. It is a basal bloomer and unlike most Costus species it produces TWO flowers per bract. The foliage is your basic green spiral ginger foliage, growing to about 4-5 feet tall on thin, but strong upright stems. The flowers to me are especially pretty.

Hardiness is untested, but this Costus did survive outdoors last winter to mid twenties temperatures in my zone 8B garden in a rather mild winter. I am growing it in light shade with maybe an hour or two of afternoon sun. Like most other Costus species, it seems to prefer moist, but well drained, fertile, organic soil.


Costus maculatus foliage Costus maculatus flowers

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