Tonestus lyallii

Tonestus lyallii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Tonestus
Species: T. lyallii
Binomial name
Tonestus lyallii
(A.Gray) A.Nelson
Synonyms

Haplopappus lyallii

Tonestus lyallii is a species of flowering plant in the aster family known by the common names Lyall's goldenweed,[1] Lyall's serpentweed and Lyall's tonestus. It is native to western North America, particularly in the Rocky Mountains and the mountain ranges of the Pacific Northwest with scattered occurrences between. It is a perennial herb growing in clumps or short bunches not more than about 15 centimeters tall, the stem branching from a tough caudex. The leaves are smooth-edged and linear or lance-shaped, the largest at the base of the plant reaching up to about 8 centimeters long. The inflorescence is a single flower head or a pair of heads each about a centimeter wide with green or red phyllaries. The head bears at least 10 or 11 bright yellow ray florets around a center containing many tubular disc florets.

References

  1. "Tonestus lyallii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 11 December 2015.
This article is issued from Wikipedia - version of the 12/11/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.