Antennaria racemosa

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Antennaria racemosa
Antennaria racemosa 4655.JPG
Pistillate Antennaria racemosa (Wenatchee Mountains, Washington)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Antennaria
Species: A. racemosa
Binomial name
Antennaria racemosa
Hook.
Synonyms[1]
  • Antennaria petasites Greene
  • Antennaria piperi Rydb.

Antennaria racemosa is a species of flowering plant in the daisy family known by the common name racemose pussytoes.[2] It is native to western North America from British Columbia and Alberta south as far as northern California and Wyoming.[3][4] It grows in mountain forests, generally in moist, partially shaded areas, and often colonizes bare patches of mineral-rich soil, including disturbed areas.[3]

Antennaria racemosa is a glandular perennial herb which may be small, woolly, and matted to nearly hairless and erect to heights near 50 cm (20 inches).[5] It forms basal patches of oval-shaped leaves 3 to 10 centimeters long, fuzzy on the undersides and shiny green above.[5] The patches are connected with stolons covered in leaves.[3] The erect stem bears an inflorescence which can be shaped like a raceme and is often dense, especially in higher elevations, containing several flower heads.[3] The species is dioecious, with male and female plants producing different types of flowers in the heads.[2] The fruit is an achene with a body only about a millimeter long attached to a soft pappus up to 7 millimeters long.[5] The pappus catches the wind, which disperses the seed.[3] The plant also reproduces vegetatively via its creeping stolons.[3]

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