Antennaria racemosa

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
Antennaria racemosa near Chumstick Mountain, Chelan County Washington
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Antennaria
Species:
A. racemosa
Binomial name
Antennaria racemosa
Synonyms[1]
  • Antennaria petasites Greene
  • Antennaria piperi Rydb.

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]

References
  1. The Plant List Antennaria racemosa Hook.
  2. Flora of North America
  3. US Forest Service Fire Ecology
  4. Biota of North America Program 2014 county distribution map
  5. Jepson Manual Treatment


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.