African Plant Database


Najas welwitschii Rendle
Family : Najadaceae
Family (APGIII) : HYDROCHARITACEAE
Protologue : Cat. Afr. Pl. 2: 95 (1899) 
Information on the genus : Najas
 
 
Status
Status for SA : accepted (present)
Status for TA : accepted (present)
 
Synonym(s) Heterotypic
=*Najas pectinata auct. Berhaut; Cufod. p.p quoad "Fazokl"; Hepper p.p. quoad Leprieur & Hall cc 725; Lebrun; Lebrun & al.; Symoens p.p. quoad J.& A.Raynal 12671
=*Najas graminea auct. Fl.Afr.Centr. p.p. quoad Vanderyst s.n.
=*Najas meiklei auct. Hepper p.p. quoad Hall cc 723
 
Ecology and distribution
Trop. Afr.
Biology : Monoecious, submerged herb; stem 30 cm tall, 0,5 mm Ø, unarmed; leaves without spines on midrib; 6-20 teeth on each margin, leaf teeth 0,14-0,54 mm long, on excrescences; septa present; fibres absent; leaf sheath rounded.
  see more in the book
Ecology : Inundated rice fields; standing fresh water; sometimes mixed with N. graminea; lake; in water generally not very deep (20 cm).
  General aspect very similar to N. horrida.
  ). According to the World Checklist Monocotyledons, Royal Botanic Gardens, Kew, this species occurs in NE Africa (E Sudan-W Ethiopia) and in Zaire-Angola. It is also present in India (Ratna Guha & M. S. Mondal)

Bibliography for Tropical Africa :
  • Hedberb, I., Edwards &al. (eds) (1997). Flora of Ethiopia and Eritrea 6: 31
  • Darbyshire, I. Kordofami, M. & al. (2015). The plants of Sudan and south Sudan, An annoted checklist. Kew Publishing

Bibliography other :
  • Guide Florist. Parc. Natl. Cantanhez (Guin-Bissau) : 784 (2010).
 
More info on :
see under Jstor_African Plant Initiative
see under chg
see under Flore d'Afrique Centrale
see under The International Plant Name Index
 
Map
carte afrique num 42050
 
Record n°42050
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