Polystachya albescens Ridl.
subsp. imbricata (Rolfe) Summerh.

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Polystachya albescens subsp. imbricata

Picture: Bart Wursten
Below base of Mtarazi Falls.

Polystachya albescens subsp. imbricata

Picture: Bart Wursten
La Rochelle Botanic Garden

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Synonyms: Polystachya imbricata Rolfe
Common names:
Status: Native
Epiphytic orchid. Stems clustered, not thickened into pseudobulbs, green; base sometimes covered in remains of old leaf-sheaths. Leaves 3-4, sheathing at the base, apex rounded or pointed. Inflorescence up to 60 mm long with up to 20 pale cream to yellowish-green flowers.
Type location:
Derivation of specific name: albescens: whitish;
imbricata: overlapping like roof tiles; possibly referring to the closely spaced flower bracts
Habitat: In moist, shaded situations in montane or riverine forest and high rainfall miombo woodland.
Altitude range:
Flowering time:Oct - Jan
Worldwide distribution: Angola, Cameroon, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, Swaziland and Limpopo, Mpumalanga, South Africa.
Zambian distribution (Flora Zambesiaca): N
Zambian distribution (Provinces): N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Ball, J.S. (1978). Southern African Epiphytic Orchids. Conservation Press, Johannesburg. Pages 166 - 167. (Includes a picture).

Cribb, P.J. (1984). Orchidaceae (Part 2) Flora of Tropical East Africa Pages 355 - 356.

Kimberley, M.J. (2003). A List of Epiphytic Orchids of Zimbabwe Excelsa 20 Page 50.

La Croix, I. & Cribb, P.J. (1998). Orchidaceae (Part 2) Flora Zambesiaca 11(2) Pages 329 - 330.

La Croix, I. et al. (1983). Malawi Orchids Volume 1 Epiphytic Orchids National Fauna Preservation Society of Malawi Pages 103 - 104. (Includes a picture).

La Croix, I. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Pages 210 - 211. (Includes a picture).

Linder, H.P. & Kurzweil, H. (1999). Orchids of Southern Africa A.A. Balkema, Rotterdam, the Netherlands ISBN 90-5410-445-7 Pages 409 - 411. (Includes a picture).

McMurtry, D., Grobler,L., Grobler, J. & Burns, S. (2008). Field Guide to the ORCHIDS of Northern South Africa and Swaziland Umdaus Press, PO Box 11059 Hatfield 0028 South Africa Pages 400 - 401. (Includes a picture).

Mytnik-Ejsmont, J. (2011). A Monograph of the Subtribe Polystachyinae Schltr. (Orchidaceae) University of Gdansk, Poland, ISBN 978 83 7531 174 4 Pages 169 - 170. (Includes a picture).

Schelpe, E.A.C.L.E. (1976). A Provisional Checklist of the Orchidaceae of Mozambique South African Journal of Botany 42(4) Page 391.

Strugnell, A.M. (2006). A Checklist of the Spermatophytes of Mount Mulanje, Malawi Scripta Botanica Belgica 34 National Botanic Garden of Belgium Page 139.

Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 84.

Other sources of information about Polystachya albescens subsp. imbricata:

Our websites:

Flora of Malawi: Polystachya albescens subsp. imbricata
Flora of Mozambique: Polystachya albescens subsp. imbricata
Flora of Zimbabwe: Polystachya albescens subsp. imbricata

External websites:

African Plants: A Photo Guide (Senckenberg): Polystachya albescens
African Plant Database: Polystachya albescens
Biodiversity Explorer (Biodiversity of southern Africa): Polystachya albescens
BHL (Biodiversity Heritage Library): Polystachya albescens
EOL (Encyclopedia of Life): Polystachya albescens
ePIC (electronic Plant Information Center): Polystachya albescens
Flora Zambesiaca web site: Polystachya albescens
GBIF (Global Biodiversity Information Facility): Polystachya albescens
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Polystachya albescens
IPNI (International Plant Names Index): Polystachya albescens
Ispot Southern Africa: Polystachya albescens
JSTOR Plant Science: Polystachya albescens
Kew Herbarium catalogue: Polystachya albescens
Kew Monocotyledon checklist: Polystachya albescens
Mansfeld World Database of Agricultural and Horticultural Crops: Polystachya albescens
The Plant List (version 1.1): Polystachya albescens
Tropicos: Polystachya albescens

Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-19

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2019). Flora of Zambia: Species information: Polystachya albescens subsp. imbricata.
https://www.zambiaflora.com/speciesdata/species.php?species_id=118280, retrieved 16 July 2019

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