Plant Data

Names and Taxonomy

  • Common Names: Turtleback, Annual Psathyrotes, Mealy Rosettes
  • Synonyms: Psathyrotes annua, Bulbostylis annua
  • Family: Asteraceae (Aster)
  • Genus Information:

Habit and Size

  • Duration: perennial
  • Habit: forb
  • Shape: low spreading
  • Size: up to 8 inches
  • Stem: red, hairy

Leaves

  • Color: gray-green, hairy
  • Shape: irregular obovate
  • Edge: wavy or toothed margins
  • Arrangement: alternate, basal
  • Leaf Retention: evergreen

Flowers and Fruit

  • Sex: monoecious
  • Flower Color: Yellow , Purple
  • Flower Size: 1.8 inch
  • Number of Petals: many
  • Bloom: Apr, May, Jun, Jul, Aug, Sep, Oct
  • Fruit: achene covered densely in long hairs and tipped with a large pappus of bristles

Habitat and Growing Conditions

  • Water Use: low to moderate
  • Light: full sun
  • Soil: prefers dry alkaline areas but has occasionally been found in wetlands
  • Habitat: desert and scrub habitat, often in areas with alkali soils among plants such as shadscale

Distribution

  • Distribution: AZ, CA, ID, NV, UT
  • Seen: NV (Ash Meadows)
  • Elevation:

Photographs

Turtleback (Psathyrotes annua)

Ash Meadows National Wildlife Refuge, Nevada