Helenium linifolium
| Helenium linifolium | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Spermatophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Helenium |
| Species: | H. linifolium
|
| Binomial name | |
| Helenium linifolium Rydb. 1915
| |
Helenium linifolium is a North American perennial plant in the sunflower family, commonly known as slimleaf sneezeweed.[1] It is found only in southern Texas.[2][3]
Helenium linifolium is an annual herb up to 80 cm (32 inches) tall, with wings running down the sides of the stems. Leaves are long and narrow, almost thread-like, merging with the wings on the stem. One plant can have 100 or more small spherical or egg-shaped flower heads. Each head has up to 500 disc flowers, each yellow-green toward the bottom but brown or purple toward the tip. There are also 8-9 red or yellow ray flowers.[1]
References
- ^ a b Flora of North America, Helenium linifolium Rydberg, 1915. Slimleaf sneezeweed
- ^ Biota of North America Program 2014 county distribution map
- ^ Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100
External links
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