7347.000 Pycnostachys Hook.

Description of the genus

Annual or perennial herbs or shrubs. Leaves opposite or whorled. Inflorescence a dense terminal spike. Bracts small, distinct from the leaves. Calyx ± equally 5-toothed; teeth subulate, becoming spiny in fruit. Corolla 2-lipped; upper lip 4-lobed, shorter than the lower; lower lip relatively large, boat-shaped. Stamens 4, didynamous, lying in the lower lip. Style slender, shortly 2-fid.

Worldwide: 37 species in tropical and South Africa and Madagascar

Zambia: 14 taxa.

Leucas deflexa var. deflexa

Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesFZ divisionsContent
ciliata Bramley N,C
coerulea Hook.
de-wildemaniana Robyns & J.-P. LebrunN,W,C,SDescription, Image
kassneri De Wild. N,WDescription, Image
orthodonta GürkeN,C,SDescription, Image
parvifolia Baker N
prittwitzii Perkins
pseudospeciosa Busc. & Muschl. N
ruandensis De Wild.
schliebenii Mildbr. E
sphaerocephala Baker N
stuhlmannii GürkeN,W,CDescription, Image
urticifolia Hook.NDescription, Image
verticillata Baker [LR-nt]

Other sources of information about Pycnostachys:

Our websites:

Flora of Botswana: Pycnostachys
Flora of Malawi: Pycnostachys
Flora of Mozambique: Pycnostachys
Flora of Rwanda: Pycnostachys
Flora of Zimbabwe: Pycnostachys

External websites:

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

Copyright: Mike Bingham, Annette Willemen, Nicholas Wightman, Bart Wursten, Petra Ballings and Mark Hyde, 2011-25

Bingham, M.G., Willemen, A., Wightman, N., Wursten, B.T., Ballings, P. and Hyde, M.A. (2025). Flora of Zambia: Genus page: Pycnostachys.
https://www.zambiaflora.com/speciesdata/genus.php?genus_id=1229, retrieved 2 April 2025

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