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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 dioecious. Stem and back of the midrib provided with spines. Leaves up to 6 mm broad. Seeds pale yellow-brownish, areoles irregular in shape
 Najas marina
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.Sheath prolonged with narrowly triangular auricles. Male flowers without spathe; seeds greenish brown; areole quadrangular, rectangular-hexagonal
 Najas graminea
2.Sheath with short rounded-truncate auricles. Male flowers enclosed in spathe; seeds purplish, areoles ladder-like
3.Anther 1-thecous
 Najas minor
3.Anther 4-thecous
 Najas oguraensis
 
 
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