SAWTOOTH SUNFLOWER
|
|
File Size: 92 KB |
|
|
Helianthus grosseserratus Martens
|
Riley County, Kansas |
Perennial |
Height: 3-12 feet |
Family: Asteraceae - Sunflower Family |
Flowering Period: August, September |
|
Stems: | | Erect, simple or branching above, often purplish, glabrous and waxy below, appressed-hairy in inflorescence. | Leaves: | | Mostly alternate, simple, stalked, lanceolate, 4 to 12 inches long, 1 to 4 inches wide, rough above, soft-hairy below; margins sharply toothed to occasionally nearly entire; tips pointed. | Inflorescences: | | Heads, numerous, in loose, panicle-like clusters; heads 3 to 4 inches wide; bracts linear-lanceolate, slightly longer than disk, overlapping, loose and spreading. | Flowers: | | Ray florets 10-20, about 1.5 inch long, yellow; disk florets numerous, golden-yellow. | Fruits: | | Achenes, short, flattened, dark brown to black, tipped with 2 awns, enclosing small seed. | Habitat: | | Stream and wetland edges, open bottomlands, damp prairies, roadsides, and waste places. | Distribution: | | East 2/5 of Kansas. | Forage Value: | | Livestock will consume sawtooth sunflower. | Uses: | | Native Americans treated burns with a poultice made from the flowers. | Comments: | | Named for the conspicuous teeth along the leaf edges. |
|
Sawtooth sunflower leaves | ![](thumbnails/sawtooth.jpg) | 128 KB | Riley County, Kansas |
| Sawtooth sunflower inflorescences | ![](thumbnails/sawtooth4.jpg) | 101 KB | Riley County, Kansas |
| Sawtooth sunflower | ![](thumbnails/sawtooth7.jpg) | 113 KB | Riley County, Kansas |
| Sawtooth sunflower leaves | ![](thumbnails/sawtoothsunleaf4.jpg) | 147 KB | Riley County, Kansas |
| Sawtooth sunflower | ![](thumbnails/sawtooth6.jpg) | 184 KB | Riley County, Kansas |
| Sawtooth sunflower leaves | ![](thumbnails/sawtoothsunleaves2.jpg) | 160 KB | Riley County, Kansas |
| Sawtooth sunflower bracts | ![](thumbnails/sawtoothsunbracts.jpg) | 90 KB | Riley County, Kansas |
| Sawtooth sunflower | ![](thumbnails/sawtooth10.jpg) | 76 KB | Linn County, Kansas |
| Sawtooth sunflower | ![](thumbnails/sawtooth11.jpg) | 111 KB | Linn County, Kansas |
| Sawtooth sunflower leaf | ![](thumbnails/sawtoothleaf.jpg) | 63 KB | Linn County, Kansas |
| Sawtooth sunflower | ![](thumbnails/sawtooth15.jpg) | 94 KB | Leavenworth County, Kansas |
| Sawtooth sunflower inflorescence | ![](thumbnails/Helianthus_grosseserratus.jpg) | 99 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower inflorescence | ![](thumbnails/Helianthus_grosseserratus2.jpg) | 107 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower inflorescences | ![](thumbnails/Helianthus_grosseserratus3.jpg) | 99 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower habit | ![](thumbnails/Helianthus_grosseserratus4.jpg) | 188 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower florets | ![](thumbnails/Helianthus_grosseserratus5.jpg) | 123 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower habit | ![](thumbnails/Helianthus_grosseserratus7.jpg) | 124 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower leaf | ![](thumbnails/Helianthus_grosseserratus_leaf.jpg) | 94 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower leaf | ![](thumbnails/Helianthus_grosseserratus_leaf2.jpg) | 103 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower winter habit | ![](thumbnails/Helianthus_grosseserratus_winter.jpg ) | 142 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| Sawtooth sunflower winter habit | ![](thumbnails/Helianthus_grosseserratus_winter3.jpg) | 118 KB | Tallgrass Prairie National Preserve, Chase County, Kansas |
| | | | |
|
|
|
|
|
|