LADY'S THUMB
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| File Size: 54 KB |
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Polygonum persicaria L.
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| Konza Prairie, Riley County, Kansas |
| Annual |
| Height: 6-36 inches |
| Family: Polygonaceae - Buckwheat Family |
| Flowering Period: July, August, September,October |
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| Stems: | | Erect or ascending, usually much-branched, glabrous or hairy. | | Leaves: | | Alternate, simple, short-stalked, lanceolate to linear-lanceolate, 1 to 6 inches long, 1/4 to 1/2 inch wide, often with dark spot near middle of blade; margins entire; tips tapering to points; stipules tubular, with short bristles on top margins. | | Inflorescences: | | Racemes, erect, less than 1.25 inches long, densely flowered, terminal and axillary. | | Flowers: | | Perianths less than 1/8 inch long, dull pink to greenish pink; perianth segments 5, united; tips free; stamens and styles not extending beyond perianth lobes. | | Fruits: | | Achenes, small, shiny, black. | | Habitat: | | Damp disturbed sites and waste places. | | Distribution: | | Principally east 3/5 of Kansas. | | Origin: | | Introduced from Europe. | | Uses: | | Native Americans used the leaves to treat stomach pains and poison ivy rash, and rubbed the plant on their horses to keep flies away. |
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| Lady's thumb |  | | 142 KB | | Greenwood County, Kansas |
| | Lady's thumb |  | | 128 KB | | Greenwood County, Kansas |
| | Lady's thumb inflorescence |  | | 62 KB | | Konza Prairie, Riley County, Kansas |
| | Lady's thumb leaves |  | | 80 KB | | Konza Prairie, Riley County, Kansas |
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