Tonestus lyallii

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Tonestus lyallii
Lyall's goldenweed (48d5fc45f3004d5e8356b7cdea437d82).JPG
Scientific classification
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T. lyallii
Binomial name
Tonestus lyallii
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.

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References

  1. "Tonestus lyallii". Natural Resources Conservation Service PLANTS Database. USDA . Retrieved 11 December 2015.