Helenium chihuahuense
Helenium chihuahuense | |
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Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Eudicots |
(unranked): | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Tribe: | Helenieae |
Genus: | Helenium |
Species: | H. chihuahuense |
Binomial name | |
Helenium chihuahuense Bierner 1972 | |
Synonyms[1][2] | |
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Helenium chihuahuense is a North American perennial plant in the sunflower family. It has been found only in the state of Chihuahua in northwestern Mexico.[1][3]
Helenium chihuahuense is a branching annual herb up to 78 cm (31.2 inches) tall with thick rootstocks producing only one stem with a single flower head. The leaves are long, narrow and irregularly lobed. The head is spherical or egg-shaped, with many disc flowers, each yellow with purple tips. These are surrounded by about 14-15 yellow ray flowers.[1]
References
- 1 2 3 Bierner, Mark William. 1972. Sida 5(1): 45-47, as Helenium chihuahuensis, includes full-page line drawing on page 46
- ↑ Tropicos, Helenium chihuahuense Bierner
- ↑ Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100
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