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Pakistan | Family List | Rosaceae | Potentilla

4H-e. Potentilla Subgenus Potentilla Section Rivales Poeverl. in Aschers & Graebn., Syn. Fl. Mitteleur. 6(1): 669. 1904. M. Shah & Wilcock in Edinb., J. Bot. 50(2): 178. 1993.

Muqarrab Shah


Department of Microbiology, Hazara University, Mansehra, Pakistan

Lectotype: Potentilla rivalis L.


1 Stem, leaves and calyces glandulose.   (2)
+ Stem, leaves and calyces eglandulose.   (4)
       
2 (1) Stem prostrate, flowers in loose corymbose cymes, outer sepals suborbicular, achenes smooth.   33 Potentilla monanthes
+ Stem erect or ascending, flowers in terminal aggregate heads, outer sepals oblong, achenes often ridged   (3)
       
3 (2) Stem, leaves and calyces with red glands, styles stongly papillose at the base.   34 Potentilla desertorum
+ Stem, leaves and calyces with pale-yellow glands, styles not papillose at the base.   36 Potentilla x subdigitata
       
4 (1) Perennials.   35 Potentilla x gilgitica
+ Annuals or biennials.   (5)
       
5 (4) Prostrate herbs, leaves palmate-digitate, leaflets regularly toothed.   37 Potentilla sundaica
+ Ascending herbs, rarely prostrate, leaves pinnate, leaflets irregularly dissected.   (6)
       
6 (5) Lowermost stem leaves 3-5 pinnate, petals 2-3.5 x 1.7-2.5 mm., retuse above, styles coniform, achenes 0.9-1 mm. long.   38 Potentilla supina
+ Lowermost stem leaves 2-3 pinnate, petals 0.8-1.2 x 0.4-0.7 mm, rounded above, styles uniformely thickened, achenes 0.5-0.6 mm. long.   39 Potentilla heynii

Lower Taxa

Related Synonym(s):


 

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