Drummond's Cinquefoil
Potentilla drummondii
Synonyms: Potentila cascadensis, Potentilla dissecta var. drummondii, Potentilla drummondii ssp. drummondii, Potentilla drummondii var. cascadensis
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Drummond's cinquefoil as seen in vernally moist meadows uphill to the east of Upper Bigelow Lake, Siskiyou National Forest..........July 14, 2012.
The photo above shows a close-up of the flower
of Drummond's cinquefoil. Note the numerous stamens and pistils. Photographed
in a dry meadow along a stream feeding the upper parts of Cougar Creek at the
southeastern side of Mt. Adams.......May 29, 2005.
The photo above shows a close-up of the pinnately compound leaf
of Drummond's cinquefoil. Note the 5-7 greenish leaflets. The similar Brewer's
cinquefoil has leaves which are more gray-haired on the dorsal surface.
Photographed in a dry meadow along a stream feeding the upper parts of Cougar
Creek at the southeastern side of Mt. Adams.........May 29, 2005.
The photos below were taken on along the climber's
trail about one-quarter mile above the Bird Creek Meadows Parking Lot at the
southeastern corner of Mt. Adams on August 4, 2001.
The photo above shows the sepals on the underside
of the flower.
The photo above shows the upper surface of
a pinnately compound basal leaf of Drummond's cinquefoil as seen in a large
meadow along the Stagman Ridge Trail about one mile north of Grassy Hill on
the southern slopes of Mt. Adams.......July 27, 2006. The
upper leaf surface of this species is a darker, brighter green than that of
the pale lower leaf surface (as seen in the next photo below).
The photo above shows the lower surface of
a pinnately compound basal leaf of Drummond's cinquefoil as seen in a large
meadow along the Stagman Ridge Trail about one mile north of Grassy Hill on
the southern slopes of Mt. Adams.........July 27, 2006.
Paul Slichter