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Packera macounii

Taxonomy

Packera macounii (Greene) W.A. Weber & Á. Löve

	Synonyms:
       SELI8	Senecio ligulifolius Greene
	SEMA	Senecio macounii Greene

Description

General

"Packera macounii is a species of flowering plant in the aster family known by the common name Siskiyou Mountains ragwort. It is native to the west coast of North America from British Columbia to far northern California, where it grows in chaparral and mountain forests, often on serpentine soils. It is a perennial herb producing a single erect stem up to 40 or 50 centimeters in maximum height from a taproot and branching caudex unit. It is slightly hairy to quite woolly in texture. The leaves have lance-shaped blades several centimeters long which are borne on long petioles. The inflorescence holds several flower heads containing many disc florets and usually either 8 or 13 yellow ray florets each about a centimeter long." ^[1]

Leaves

Flowers

[[File:http://www.google.com/imgres?q=Packera+macounii&um=1&hl=en&client=safari&sa=N&rls=en&biw=1024&bih=880&tbm=isch&tbnid=Fngx4_F96aw-SM:&imgrefurl=http://intermountainbiota.org/portal/taxa/index.php%3Ftaxon%3D4382%26taxauthid%3D1%26cl%3DManti%2520LaSal%2520National%2520Forest&docid=s7ZcaYP80Se8BM&imgurl=http://herbarium.biology.colostate.edu/api/photo/2395/thumb&w=234&h=351&ei=X2aMT7ikFeOniQKFqpnbCw&zoom=1&iact=hc&vpx=224&vpy=123&dur=3136&hovh=275&hovw=183&tx=89&ty=139&sig=110879940046617368454&page=2&tbnh=164&tbnw=109&start=20&ndsp=27&ved=1t:429,r:17,s:20,i:155%7Cthumb%7C300px%7Cright%7CFlowers of Siskiyou mountain ragweed]]

Fruit

Seed

Seeds of Siskiyou Mountain ragweed

Photo by Lisa Hintz

Distribution

• United States:
• Elsewhere:

Habitat

Uses

Propagation

References

1. ↑ Wikipedia Foundation

External Links

Siskiyou Mountain ragwort USDA Plants Database page

Integrated Taxonomic Information System

Jepson Manual Treatment