Megalochlamys revoluta (Lindau) Vollesen
subsp. cognata (N.E. Br.) Vollesen

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Synonyms: Ecbolium cognatum N.E. Br.
Ecbolium revoltum (Lindau) C.B. Clarke
Ecbolium schlechteri Lindau
Schwabea revoluta Lindau
Common names:
Status: Native
Shrubby perennial herb, up to 1.25 m tall. Leaves opposite, elliptic to ovate, up to 12 × 5 cm, usually smaller, more or less densely velvety, particularly on the veins and margin; dark sessile glands usually present; margin entire; petiole up to 10 cm long. Inflorescences in spikes, 1-8 cm long. Bracts green, sometimes with purplish veins, ovate with a long sharp apical point and a distinct central vein, often with non glandular hairs, glandular hairs and sometimes with capitate glands. Corolla bright blue; tube 6-13 mm long; lobes 4, 8-14 mm long; lower mid-lobe widest, up to 4.5 mm wide. Capsule 9-14 mm long, finely velvety on the sutures or near the apex.
Derivation of specific name: revoluta: rolled out and under
Habitat: Occurring in dry deciduous woodland and thickets, on rocky or loamy soils, sometimes in riverine fringes.
Altitude range: (metres) 250 - 1600 m
Flowering time:
Worldwide distribution: Botswana, Mozambique, Zimbabwe and South Africa. (Subsp. revoluta & subsp. nyanzae occur in Kenya and Tanzania).
Zimbabwe distribution: S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Acanthaceae (Part 2) Flora Zambesiaca 8(6) Pages 243 - 244.

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 19.


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Other sources of information about Megalochlamys revoluta subsp. cognata:

Our websites:

Flora of Botswana: Megalochlamys revoluta subsp. cognata
Flora of Mozambique: Megalochlamys revoluta subsp. cognata

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-17

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2017). Flora of Zimbabwe: Species information: Megalochlamys revoluta subsp. cognata., retrieved 23 July 2017

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