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Published In: Species Plantarum 2: 1015. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: RIZWAN Y. HASHMI & SAOOD OMER
General/Distribution: Represented in Pakistan by 4 species from plains to mountains up to ± 3100 m in brackish and fresh waters.

 

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1 Plants monoecious. Stem and back of the midrib without spines. Leaves up to 1.5 mm broad. Seeds and areoles not as above (2)
+ Plants dioecious. Stem and back of the midrib provided with spines. Leaves up to 6 mm broad. Seeds pale yellow-brownish, areoles irregular in shape 1 Najas marina
2 (1) Sheath with short rounded-truncate auricles. Male flowers enclosed in spathe; seeds purplish, areoles ladder-like (3)
+ Sheath prolonged with narrowly triangular auricles. Male flowers without spathe; seeds greenish brown; areole quadrangular, rectangular-hexagonal 2 Najas graminea
3 (2) Anther 1-thecous 3 Najas minor
+ Anther 4-thecous 4 Najas oguraensis
 
 
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