Ruspolia seticalyx (C.B. Clarke) Milne-Redh.

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Photo: Nicholas Wightman
Nsumbu National Park; Nsama Distr., Northern Province

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Synonyms:	Eranthemum seticalyx C.B. Clarke Pseuderanthemum seticalyx (C.B. Clarke) Stapf
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Description:	Erect shrubby herb or sometimes a small shrub up to 1.25 m tall; plant drying green. Leaves opposite, more or less broadly ovate to elliptic, largest 8-23 cm long, abruptly narrowing into a long decurrent base, hairless or with scattered hairs above, hairless or with fine short hairs along the midrib and larger veins beneath; petiole up to 3 cm long but mostly integrated into the decurrent leafbase. Flowers in a series of terminal cymose clusters, often so close together as to form an almost continuous spike-like inflorescence, 5-35 cm long; lower nodes in inflorescence to 1.5-5 cm long. Inflorescence axis hairless or finely velvety, without any stalked capitate glands. Calyx 5-9 mm long, hairless or sparsely hairy on the lobes, without glands. Corolla orange-red, red or scarlet and on the outside of the lobes with both longer curly hairs and numerous stalked, capitate glands; tube linear, 2-3 cm long; lobes elliptic, 9-14 mm long. Capsule 2.8-4 cm long. Inner surface of the seed with irregular ridges.
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Worldwide distribution:	Botswana, DRC, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe and Madagascar.
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Literature:	Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 48. Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 19. Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Acanthaceae (Part 2) Flora Zambesiaca 8(6) Pages 135 - 137. (Includes a picture). Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 112. (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 15. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 19. Roodt, V. (2011). Wild flowers, Waterplants and Grasses of the Okavango Delta and Kalahari "Did You Know" nature series Struik Nature for Veronica Roodt Publications Page 66. (Includes a picture). 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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Flora of Botswana: Ruspolia seticalyx
Flora of Malawi: Ruspolia seticalyx
Flora of Mozambique: Ruspolia seticalyx
Flora of Zambia: Ruspolia seticalyx
Flora of Zimbabwe: Ruspolia seticalyx

External websites:

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