Category: Violaceae

  • Various Shades of Common Blue Violet (Viola sororia)

    Pale form of Viola sororia
    Photographed April 29.

    Common Blue Violets normally bloom in a narrow range of shades from deep violet to deep purple. We do, however, sometimes find flowers in a range of shades from pale lavender to pure white, as well as flowers with white flecks. Most of these flowers were blooming in a lawn in Highland Park among a large population of the regulation violet-colored violets.

    Photograohed May 2.

    This one was blooming near Saw Mill Run in Seldom Seen.

    It is possible that some of these plants are other closely related species, or even hybrids. Botanists themselves have trouble sorting violets: Viola papilionacea, for example, was commonly regarded as a separate species from V. sororia (though Gray said that V. sororia “passes into” V. papilionacea) but is now subsumed by its sister, which is called “sororia” (“sisterly”) precisely because it looks so much like some other species in the genus. In addition, Fernald’s revision of Gray’s Manual of Botany lists eleven other species with which Viola sororia hybridizes. At that point, Father Pitt gives up and simply says these are probably the same species, but corrections from botanists with better eyes are welcome.

    For a description of the species, see the Viola sororia reference page.


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  • Cream Violet (Viola striata)

    Viola striata
    Photographed April 27.

    Violets are difficult to sort out, and this species is similar to the Canada Violet (V. canadensis), also fairly common in our area. Note, however, the rounded leaves with rounded teeth, the long spur of the flower, and the almost complete lack of yellow at the bases of the petals; these things persuade us that this is V. striata. Corrections, however, are always received with gratitude. These plants were blooming abundantly along the Trillium Trail in Fox Chapel.

    Cream Violet
    Viola striata

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  • Common Blue Violet (Viola sororia)

    Viola sororia
    Photographed April 22.

    Blooming in a lawn in Highland Park. Some homeowners apparently consider violets an infestation and pay good money to get rid of them. We speak words of encouragement to the violets whenever we see them.

    Common Blue Violet

    For a full description, see the Viola sororia reference page.


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  • Johnny Jump-Up (Viola tricolor)

    Viola tricolor

    The original Pansy; it escapes easily, and can establish semi-permanent colonies in odd places. These were growing from cracks in the sidewalk on the South Side.

    Johnny Jump-Up
    Photographed May 15 with a Kodak EasyShare Z981.

    For a description of the species, see the Viola tricolor reference page.

  • Common Blue Violet (Viola sororia), White Form

    White violet
    Photographed April 18 with a Fujifilm FinePix HS10.

    Although violet is the usual color of Viola sororia, a white form sometimes appears. This one was growing between the bricks of a sidewalk in Allegheny West.

    Viola sororia, white form
    Side view of the flower

    For a description of the species, see the Viola sororia reference page.