Persicaria strigosa (R. Br.) H. Gross

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Photo: Bart Wursten
Kwando River

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Synonyms:	Polygonum strigosum R. Br.
Common names:
Frequency:
Status:	Native
Description:	A slender straggling annual herb, sometimes rooting at the lower nodes. Stems greenish-brown, simple or branched, with reflexed bristles and sometimes with stalked glands. Leaves 5–10 cm long, narrowly linear-lanceolate, sometimes lobed at the base, hairless pubescent on both surfaces and with reflexed bristles on the midrib and veins above; petiole, bristly. Sheathing stipules (Ochrea) 2–3 cm long, with reflexed bristles and shorter ascending hairs at the apex. Inflorescence a slender, lax, branched terminal panicle with flowers 1-3 together, surrounded by short bracts; peduncle up to 6 cm long, covered with purplish-red stalked glands. Corolla 5-lobed, 2.5–3 mm long, white flushed pink, or pale blue, gland-dotted. Fruit a small nut, c. 2 × 1.5 mm, bluntly 3-sided, smooth and shiny.
Notes:
Derivation of specific name:	strigosa: strigose or with stiff appressed hairs, referring to the leaf surface.
Habitat:	Wet ground at the edges of streams and dams, often growing in water.
Flowering time:
Worldwide distribution:	Widespread in tropical Africa, Namibia and South Africa, also in Madagascar, Asia and Australia.
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Thursday 15 March 2018
Literature:	Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 84 - 85. as Polygonum strigosum (Includes a picture). Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 229. as Polygonum strigosum (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 68. as Polygonum strigosum Nogueira, I., Ortiz, S. & Paiva, J.A.R. (2006). Polygonaceae Flora Zambesiaca 9(3) Pages 8 - 9. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 222. as Polygonum strigosum Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 97.

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Flora of Botswana: Persicaria strigosa
Flora of Burundi: Persicaria strigosa
Flora of Malawi: Persicaria strigosa
Flora of Zambia: Persicaria strigosa
Flora of Zimbabwe: Persicaria strigosa

External websites:

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