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Senecio pattersonensis

From Wikipedia, the free encyclopedia

Senecio pattersonensis
Senecio pattersonensis specimen

Imperiled  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Senecio
Species:
S. pattersonensis
Binomial name
Senecio pattersonensis
Hoover

Senecio pattersonensis is an uncommon species of flowering plant in the aster family known by the common names Mono ragwort.[1][2] and Mount Patterson senecio.[3][4]

Distribution

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It is endemic to eastern California in Mono County, in a small area of the Eastern High Sierra Nevada peaks at elevations of 3,000–3,700 metres (9,800–12,100 ft).[1][5] It grows in rocky high mountain habitat in an alpine climate, such as talus and fellfields.[1]

It is named for Mount Patterson, the highest peak in the rugged Sweetwater Mountains subrange of the Sierra Nevada, in Mono County.[6]

Description

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Senecio pattersonensis is a small perennial herb producing one to three stems from a rhizome, the plant generally not exceeding ten centimeters in height.

The herbage is hairless and green to red in color. The leaves are thick and often fleshy, measuring 2 to 4 centimeters long. They are narrow and linear or lance-shaped, sometimes with wavy edges or divisions into lobes.

The inflorescence bears one to four flower heads containing yellow disc florets and usually 8 ray florets measuring one half to one centimeter in length. It blooms from July to August.

References

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  1. ^ a b c CalFlora Database: Senecio pattersonensis . accessed 3.23.2017.
  2. ^ USDA, NRCS (n.d.). "​Senecio pattersonensis​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 10 November 2015.
  3. ^ California Native Plant Society Rare Plant Profile
  4. ^ Flora of North America: Senecio pattersonensis
  5. ^ The Nature Conservancy
  6. ^ CalFlora Botanical Names
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