Polystachya greatrexii Summerh.

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Polystachya greatrexii

Photo: Bart Wursten
Christon Bank

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Synonyms: Geerinckia couloniana (Geerinck & Arbonn.) Mytnik & Szlach.
Polystachya couloniana Geerinck & Arbonn.
Common names:
Status: Native
Attractive dwarf epiphytic or lithophytic herb. Pseudobulbs subspherical, forming small chains. Leaves linear, grass-like, deciduous with the plants usually flowering when leafless. Inflorescence up to 4 cm, 4-12-flowered. Flowers pale lilac. Sepals pubescent on the outside.
Derivation of specific name: greatrexii: after F.C. Greatrex
Habitat: In riverine fringes and Brachystegia woodland.
Altitude range: 900 - 1500 m
Flowering time:Aug - Sep
Worldwide distribution: DRC, Burundi, Tanzania, Malawi, Zimbabwe
Malawi distribution: S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
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Ball, J.S. (1978). Southern African Epiphytic Orchids. Conservation Press, Johannesburg. Pages 196 - 197. (Includes a picture).

Cribb, P.J. (1984). Orchidaceae (Part 2) Flora of Tropical East Africa Pages 373 - 375.

Grosvenor, R.K. (1976). A list of orchids indigenous in Rhodesia. Excelsa 6 Page 85.

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 134 - 135. (Includes a picture).

La Croix, I. et al. (1983). Malawi Orchids Volume 1 Epiphytic Orchids National Fauna Preservation Society of Malawi Pages 110 - 111. (Includes a picture).

La Croix, I. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Pages 219 - 220. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 97.

Mytnik-Ejsmont, J. (2011). A Monograph of the Subtribe Polystachyinae Schltr. (Orchidaceae) University of Gdansk, Poland, ISBN 978 83 7531 174 4 Pages 185 - 186. (Includes a picture).

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 123.

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

Williamson, G. (1977). The Orchids of South Central Africa J.M. Dent & Sons Ltd., London. Pages 119 - 120. (Includes a picture).

Other sources of information about Polystachya greatrexii:

Our websites:

Flora of Zimbabwe: Polystachya greatrexii

External websites:

African Plants: A Photo Guide (Senckenberg): Polystachya greatrexii
African Plant Database: Polystachya greatrexii
BHL (Biodiversity Heritage Library): Polystachya greatrexii
EOL (Encyclopedia of Life): Polystachya greatrexii
GBIF (Global Biodiversity Information Facility): Polystachya greatrexii
Google: Web - Images - Scholar
iNaturalist: Polystachya greatrexii
IPNI (International Plant Names Index): Polystachya greatrexii
JSTOR Plant Science: Polystachya greatrexii
Mansfeld World Database of Agricultural and Horticultural Crops: Polystachya greatrexii
Plants of the World Online: Polystachya greatrexii
Tropicos: Polystachya greatrexii
Wikipedia: Polystachya greatrexii

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Species information: Polystachya greatrexii.
https://www.malawiflora.com/speciesdata/species.php?species_id=118360, retrieved 19 April 2024

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