This bitterroot plant was found next to
a trail traveling across a south-facing slope above
Hidden Valley Regional Park
(May 9, 2015), hours after the area got some rain.
Bitteroot occasionally occurs in these mountain ranges east of Sparks
and Reno, including the gravelly sagebrush slopes around
Mount Davidson further south.
The large, spectacular flower on a short, leafless stem shows the
beige-to-pink anthers inside the
corolla of white petals.
The sepals, which are seen protecting
the left-side flower bud and being ready to unfold, are colored pink.
The low-growing bitterroot
(Lewesia rediviva) often
appears isolated—with no or only a few other plant
species nearby—in dry, sandy soil as it is common on rocky flats
and slopes in the Great Basin.
Therefore, bitterroot has the descriptive synonym
sand rose. However, it does not
belong to the rose family (Rosaceae), but to the
purslane family (Portulacaceae).