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Datasheet for Costus guanaiensis var. guanaiensis

Plant Datasheet for Costus guanaiensis var. guanaiensis

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Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica showing hairs on stems of plant believed to be - Click to see full sized image
Photo# 12373 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica showing hairs on stems of plant believed to be


Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica ligule closeup of plant believed to be - Click to see full sized image
Photo# 12374 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica ligule closeup of plant believed to be


Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be - Click to see full sized image
Photo# 12375 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be


Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be - Click to see full sized image
Photo# 12376 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be


Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be - Click to see full sized image
Photo# 12377 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be


Costus guanaiensis  at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be - Click to see full sized image
Photo# 12378 Accession# R0
Costus guanaiensis at Parque Nacional Tapanti, Costa Rica inflorescenceof plant believed to be


Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii  (located area 1V)  - Click to see full sized image
Photo# 12669 Accession# R0
Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii (located area 1V)


Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii  (located area 1V) ligules - Click to see full sized image
Photo# 12670 Accession# R0
Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii (located area 1V) ligules


Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii  (located area 1V)  - Click to see full sized image
Photo# 12671 Accession# R0
Costus guanaiensis at Lyon Arboretum, Oahu, Hawaii (located area 1V)


Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - Click to see full sized image
Photo# 17951 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - Click to see full sized image
Photo# 17952 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - Click to see full sized image
Photo# 17953 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - Click to see full sized image
Photo# 17954 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi


Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - Click to see full sized image
Photo# 17955 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi


Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - upper leaf surface - Click to see full sized image
Photo# 17956 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - upper leaf surface


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - lower leaf surface - Click to see full sized image
Photo# 17957 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - lower leaf surface


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - lower leaf surface - Click to see full sized image
Photo# 17958 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - lower leaf surface


Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - bracts with appendages and flowers - Click to see full sized image
Photo# 17959 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - bracts with appendages and flowers


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - bracteole and calyx - Click to see full sized image
Photo# 17960 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - bracteole and calyx


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - corolla lobes - Click to see full sized image
Photo# 17961 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - corolla lobes


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - flower - Click to see full sized image
Photo# 17962 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - flower


Costus guanaiensis var. guan.  basal flowering found along road to Cueva Pumahuassi - stamen - Click to see full sized image
Photo# 17963 Accession# R3380
Costus guanaiensis var. guan. basal flowering found along road to Cueva Pumahuassi - stamen



PLANT FAMILY: Costaceae
BOTANICAL NAME: Costus guanaiensis var. guanaiensis
FORMAL SCIENTIFIC NAME: Costus guanaiensis Rusby
STATUS :Accepted
CONTINENT: Neotropical
SYNONYMS:


BOTANICAL NOTES:
Paul Maas describes var. guanaiensis as follows: "Sheaths densely ferrugineous-hirsute [stiff erect brown hairs with swollen base] with the upper side of the leaves being strigose [stiff appressed hairs] to glabrous [lacking hairs], but the lower side of the leaves are ferrugineous-villose "[long, soft, erect brown hairs]. It can produce an inflorescence either terminally on a leafy stem or basal on a leafless stem. Since this is the only variety described as having brown hairs, I am assuming any brown-haired C. guanaiensis will be from var. guanaiensis.

According to Maas, the distribution of var. guanaiensis is southern (Amazonian) Colombia, eastern Peru and western Bolivia with some specimens in Costa Rica. The distribution of var. macrostrobilus is more prevalent in Central America extending to the Pacific side of Colombia (Depts of Chocó, Antioquia and El Valle (a/k/a Valle de Cauca) and Ecuador (Esmeraldas-Los Rios), then also into northwestern South America -Venezuela and Guyana. There is much overlap between the two. The third variety tarmicus is found in Chiapas Mexico, then also in northwestern South America, but there were some scattered specimens also reported in western Colombia, Ecuador and Peru, so it is not clear at all based on geography.

A form I saw in Costa Rica, Parque Nacional Tapanti was very common along trail leading from the road down to the river. The plant was very tall, to 4 meters, with straight stems and extremely villous with brown hairs. Until I saw the flowers I took it to be Costus villosissimus, but I believe it is a form of Costus guanaiensis var. guanaiensis. Other forms from Amazonian Peru are believed to be this variety.

ACCESSION NOTES:
The following accessions are apparently examples of var. guanaiensis:

R2876 (PID7531) Costus 'Sweet Charlotte'. Has dense soft hairs on both sides of the leaves.

R3116 and R3123 (PID 7529) Costus 'Emerald Crinkles'. Collected near Iquitos, Peru. Has dense soft hairs on both sides of the leaves.

R3380 - basal flowering form collected in Huanuco, Peru


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