| Helianthella quinquenervis | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Helianthella |
| Species: | H. quinquenervis
|
| Binomial name | |
| Helianthella quinquenervis | |
| Synonyms[1] | |
| |
Helianthella quinquenervis, the fivenerve helianthella,[2] is a North American plant species in the family Asteraceae. It grows in the mountains of the western United States and northern Mexico. This include the Rockies, the Black Hills, the ranges of the Great Basin, and the northern Sierra Madre, from Montana, Oregon, and South Dakota south as far as western Chihuahua and Coahuila.[3][4][5]
Helianthella quinquenervis is a herbaceous plant up to 150 cm (4.9 ft) tall. Leaves are larger than those of most related species, up to 50 cm (20 in) long, each with 3 or 5 prominent veins running the length of the leaf. The plant usually produces only one yellow flower head per stem, nodding (hanging). Each head contains 8-21 bright yellow ray flowers surrounding numerous yellow disc flowers.[6]
References[edit]
- ^ The Plant List, Helianthella quinquenervis (Hook.) A. Gray
- ^ USDA, NRCS (n.d.). "Helianthella quinquenervis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2015.
- ^ Biota of North America Program 2014 county distribution map
- ^ SEINet, Southwestern Biodiversity, Arizona chapter includes photos, description, distribution map
- ^ photo of herbarium specimen collected in Coahuila in 1985
- ^ Flora of North America, Helianthella quinquenervis (Hooker) A. Gray, 1883.
External links[edit]
Media related to Helianthella quinquenervis at Wikimedia Commons
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction