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Datasheet for Costus varzearum

Plant Datasheet for Costus varzearum


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Photo# 12054 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12055 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12056 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12057 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12058 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12059 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12060 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12061 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12062 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12063 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12064 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12065 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12066 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12067 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12068 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12069 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12070 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12071 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12072 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12073 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12074 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12075 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12076 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12077 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12078 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12079 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12080 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12081 Specimen# R1394
Costus varzearum
From cultivated,


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Photo# 12082 Specimen# R0
Costus varzearum at Fairchild Tropical Gardens, Miami,


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Photo# 12841 Specimen# R0
Costus varzearum at Lyon Arboretum, Oahu, Hawaii


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Photo# 12842 Specimen# R0
Costus varzearum at Lyon Arboretum, Oahu, Hawaii


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Photo# 17274 Specimen# R2994
Costus varzearum
From cultivated,


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Photo# 17275 Specimen# R2994
Costus varzearum
From cultivated,


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Photo# 17397 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17398 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17399 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17400 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17401 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17402 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17403 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17404 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17405 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17406 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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Photo# 17407 Specimen# R3282
Costus varzearum
From Peru, Madre de Dios


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 #R1394 . (opens in new window).
CLICK HERE to see a description of accession #R3282 . (opens in new window).

PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus varzearum
FORMAL SCIENTIFIC NAME: Costus varzearum Maas
STATUS :Accepted
CONTINENT: Neotropical
SYNONYMS:
Costus claviger sensu Maas (1972),

BOTANICAL NOTES:
This is an accepted neo-tropical Costus species described in 1976 by Paul Maas. The species was split out from Costus claviger having a longer two-lobed ligule and smaller leaves with a terminal instead of a basal inflorescence. The typical form has dark green wavy leaves with purplish undersides and purplish stems especially at the ligules and petioles. Plant grows to less than one meter tall and is all glabrous. The inflorescence is on the smallish size, green bracts and appendages, red on the covered parts. Flowers are yellow, open labellum with red stripes on the wings.

Distribution is reported only in Brazil (Acre and Amazonas) but also found in adjacent parts of Peru. It grows in varzea forests (seasonally flooded) and thus at low altitudes, under 300 meters. On GBIF only 7 collection records were found indicating this species is somewhat rare in the wild. It has not yet been assessed for the IUCN Red List.

ACCESSION NOTES:
This species is quite common in cultivation and I have 6 accessions, three of which appear to be identical clones.

R1394 was purchased at a local nursery incorrectly tagged as Costus stenophyllus. This collection has been vouchered at the UC Berkeley, Jepsen Herbarium, UC2045810.Other accessions (R2939, R2940, R2984 and R2994) were received in trade, some originating at Glasshouse Works and incorrectly tagged, all identical to R1394. The other plant (R3282) was received from Plant Group Hawaii as Costus varzerarum 'Maldonado' and is believed collected by the late Mark Collins at Puerto Maldonado in Madre de Dios, Peru. This is a distinctly different form with flowers whose labellum folds outward and with slightly shorter ligules and other minor differences from the more common form in cultivation. R3282 has been vouchered at the UC Berkeley, Jepsen Herbarium, UC2045811.

GINGERSRUS CATALOG LISTING:
Costus varzearum-flower This Costus is often incorrectly identified as Costus sanguineus or a few other names. The name comes from its natural habitat in the seasonally flooded (varzea) forests of the Amazon basin. Costus varzearum is distinctive by its wavy leaves with purple undersides and dark green upper sides. The foliage is very attractive and tropical looking. It grows to about 5 feet tall in light shade to part sun. The flowers appear from early summer to fall on terminal inflorescenses with green bracts. They are a soft creamy yellow with bright red markings on the labellums.

It can be planted in filtered shade to part sun (up to about 2 hours direct sun) in rich, moist, organic soil. It is reported hardy to zone 9 but may be a bit hardier. I have left it outdoors in my Tallahassee zone 8B garden and it has returned just fine in milder winters. It is important not to keep the soil wet during dormancy, or the rhizomes will rot.


Costus varzearum

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