Haumaniastrum dissitifolium (Baker) A.J. Paton

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Photo: Bart Wursten
Fields' Cottage, Ezulwini, nr Mt Rukotso

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Synonyms:	Acrocephalus chirindensis S. Moore Acrocephalus dissitifolius Baker
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Description:	Perennial herb or suffrutex, up to 1.2 m tall, growing from a small woody rootstock, sometimes reduced to a thick underground woody stem. Stems 1-several, erect, quadrangular, branching, woody at base, pubescent. Leaves opposite, sometimes with clusters of younger leaves or shoots in axils, sessile or shortly petiolate, narrowly elliptic to ovate, up to 9 × 20 cm, sparsely to densely pubescent; veins raised or not beneath, diverging from midrib, curving before the margin; margin entire to serrate. Leaves subtending flower heads similar to other leaves, green or marked blue, sometimes paler at base, 7-20 mm long. Flowerheads 5-15 mm long, 5-10 mm in diameter with 6-flowered verticels. Calyx 1.5-2 mm long, densely villous, enlarging in fruit. Corolla 2-lipped, blue, greyish, purple, or rarely white, 4-6 mm long; tube 3-4.5 mm long; upper lip 4-lobed with small median lobes. Nutlets 1-1.5 mm long, brown.
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Worldwide distribution:	Angola, Burundi, DRC, Tanzania, Zambia, Malawi, Mozambique, Zimbabwe.
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Literature:	Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 30. 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 55. Paton, A.J. et al. (2013). Lamiaceae Flora Zambesiaca 8(8) Pages 172 - 173. Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 93.

Other sources of information about Haumaniastrum dissitifolium:

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Flora of Malawi: Haumaniastrum dissitifolium
Flora of Mozambique: Haumaniastrum dissitifolium
Flora of Zambia: Haumaniastrum dissitifolium
Flora of Zimbabwe: Haumaniastrum dissitifolium

External websites:

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