ALKALI YELLOWTOP
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| File Size: 121 KB |
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Flaveria campestris J. R. Johnst.
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| Comanche County, Kansas |
| Annual |
| Height: 1-3 feet |
| Family: Asteraceae - Sunflower Family |
| Flowering Period: |
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| Also Called: | | Alkili goldentops, yellowtops. | | Stems: | | Erect or ascending, branched or sometimes unbranched below inflorescence, glabrous or sometimes hairy at nodes, finely ridged or grooved. | | Leaves: | | Opposite, simple, sessile, lanceolate, 1.2 to 2.8 inches long, 1/4 to 4/5 inch wide; surfaces glabrous; margins finely-toothed to nearly entire; tips tapering to sharp points; bases slightly expanded, wrapping around stem. | | Inflorescences: | | Cluster of 12-40 small heads, dense, terminal, sometimes resembling flat-topped panicles; subtended bracts 2, leaf-like. | | Flowers: | | Heads cylindric, 1/5 to 1/3 inch long; bracts 5, in 2 unequal series; inner bracts 3, primary, elliptic to oblong-obovate, 1/5 to 1/4 inch long, yellowish-green, glabrous; outer bracts 2, much reduced, to 1/8 inch long, greenish, calyx-like; ray florets solitary, inconspicuous, sometimes absent; disk florets 3-8, corolla about 1/10 inch long, yellow. | | Fruits: | | Achene, narrowly oblong-oblanceolate, to 1/8 inch long, somewhat flattened, 10-ribbed, dark gray to black, pappus absent, enclosing smalll seed. | | Habitat: | | Low waste places and disturbed sites. | | Distribution: | | South 1/2 and northeast 1/4 of Kansas. |
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| Alkali yellowtop |  | | 161 KB | | Comanche County, Kansas |
| | Alkali yellowtop |  | | 81 KB | | Comanche County, Kansas |
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