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Erigeron leiomerus

Erigeron leiomerus

Erigeron leiomerus (Rockslide Daisy)
Asteraceae (Sunflower Family)

Alpine.  Scree.  Summer.
Spiller-Helmet Ridge, August 9, 2005.
U.S. Basin Road, August 4, 2015.

Although Erigeron leiomerus is quite small, it is easy to spot in the rock beds it calls home.  Tufts of narrow leaves (often folded inward) are frequently in tight, four inch diameter mats sporting up to a dozen or so flowers on straight but often leaning stems.  Flower color ranges from lavender to light violet to white, but buds are usually pink/purple.

The second photograph at left shows a quite uncommon occurrence, Erigeron leiomerus with stolons (runners similar to those that strawberry plants have).

"Leios" is Greek for "smooth"  and "merus", "parts", probably referring to stem and leaves.  Charles Parry, famous Colorado botanist, collected this lovely plant around 1880 and Asa Gray named it in 1884.

Erigeron leiomerus

Erigeron leiomerus

Erigeron leiomerus

Erigeron leiomerus

Erigeron leiomerus (Rockslide Daisy)
Asteraceae (Sunflower Family)

Alpine.  Scree.  Summer.
Spiller-Helmet Ridge, August 9, 2005 and July 31, 2008.

 

Erigeron leiomerus

Erigeron leiomerus (Rockslide Daisy)
Asteraceae (Sunflower Family)

Alpine.  Scree.  Summer.
Spiller-Helmet Ridge. August 9, 2005.

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Erigeron leiomerus