HOARY TANSY-ASTER
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| File Size: 280 KB |
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Dieteria canescens (Pursh ) Nutt. var. glabra (A. Gray ) D. R. Morgan & R. L. Hartm.
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| [=Machaeranthera canescens (Pursh ) A. Gray] | | [=Machaeranthera linearis Greene] |
| Morton County, Kansas (Marion McGlohon photo) |
| Annual or biennial |
| Height: 6-24 inches |
| Family: Asteraceae – Sunflower of Composite Family |
| Flowering Period: August, September |
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| Stems: | | Erect, usually solitary, sometimes few-branched, glabrous or finely pubescent, sometimes sparsely glandular, lower stems often reddish; branches ascending. | | Leaves: | | Alternate; blades linear-lanceolate to linear, 1.2 to 3 inches long, to .4 inch wide, glabrous to finely pubescent, margins entire to irregularly toothed; proximal leaves early deciduous. | | Inflorescences: | | Heads in corymb-like clusters. Involucres bell-shaped to broadly top-shaped, .25 to .5 inch tall. Phyllaries overlapping in several series, narrow, usually appressed, sometimes spreading, tips green, pointed. | | Flowers: | | Ray florets numerous, white, blue or purple, 25 to .5 inch tall; disk florets yellow, corollas .16 to .25 inch. | | Fruits: | | Achenes, .12 to .16 inch, sparsely appressed-pubescent; pappus of brownish or whitish, stiff, unequal bristles. | | Habitat: | | Open, dry sandy sites, disturbed areas. | | Distribution: | | Southwest 1/5 of Kansas | | Origin: | | Native | | Comments: | | Kansas populations of hoary tansy-aster are exclusively white. |
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| Hoary tansy-aster |  | | 374 KB | | Morton County, Kansas (Marion McGlohon photo) |
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