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Photos from pth22 near Souris on 2010-Jul12:
Blue lettuce (Lactuca biennis): Low prairie-rose (Rosa arkansana):

Photos from Lauder Sandhills on 2010-Jul12:
Western spiderwort (Tradescantia occidentalis): habitat Western spiderwort (Tradescantia occidentalis): white-flowered form plant Western spiderwort (Tradescantia occidentalis): white-flowered form Western spiderwort (Tradescantia occidentalis): white-flowered form flower Western spiderwort (Tradescantia occidentalis): blue-flowered form plant Western spiderwort (Tradescantia occidentalis): blue-flowered form plant Western spiderwort (Tradescantia occidentalis): blue-flowered form plants Western spiderwort (Tradescantia occidentalis): blue-flowered form plant Western spiderwort (Tradescantia occidentalis): branching detail Western spiderwort (Tradescantia occidentalis): blue-flowered form flowers Western spiderwort (Tradescantia occidentalis): blue-flowered form flower Western spiderwort (Tradescantia occidentalis): blue-flowered form buds Western spiderwort (Tradescantia occidentalis): pink-flowered form plant Western spiderwort (Tradescantia occidentalis): pink-flowered form flowers Western spiderwort (Tradescantia occidentalis): pink-flowered form flower with Syrphid-fly (Syrphidae sp) Western spiderwort (Tradescantia occidentalis): pink-flowered form flower Goldsmith beetle (Cotalpa lanigera): Goldsmith beetle (Cotalpa lanigera): Goldsmith beetle (Cotalpa lanigera): underside Goldsmith beetle (Cotalpa lanigera): underside Lilac-flowered beardtongue (Penstemon gracilis): plant Narrowleaf umbrellawort=Narrowleaf four-oclock (Mirabilis linearis)?: plant Narrowleaf umbrellawort=Narrowleaf four-oclock (Mirabilis linearis)?: plant Narrowleaf umbrellawort=Narrowleaf four-oclock (Mirabilis linearis)?: flower-like part Narrowleaf umbrellawort=Narrowleaf four-oclock (Mirabilis linearis)?: flower-like part closer Narrowleaf umbrellawort=Narrowleaf four-oclock (Mirabilis linearis)?: flower-like part closer
-- Mystery-plant with flower-like parts that are not flowers: Doris first thought it could be Leafy spurge, with those flower-like parts without sex-organs being the remnants of the cyathia after the seeds are gone -- the 2nd part of her explanation seems plausible however Leafy spurge has a 4-lobed cyathium;  Doris now says Mirabilis linearis (narrowleaf umbrellawort), which has such a 5-lobed involucre;
-- Western spiderwort: finding both pink and blue flowers on the same plant rules out splitting them into forma by flower-colour, so I ought to reword my captions;


Photos from Souris on 2010-Jul12:
sign: Souris Swinging Bridge sign: Souris Swinging Bridge closer building: Hillcrest Museum in Souris