Erigeron speciosus

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  • Scientific Name: Erigeron speciosus
  • Family: Asteraceae
  • Common Names: showy daisy, showy fleabane, splendid fleabane
  • Synonyms/Misapplications: Erigeron subtrinervis, Erigeron subtrinervis, Stenactis speciosa
  • Codon: ERISPE

Photo by Rod Gilbert, 2005. Also featured on Main Page.


Scientific classification
Kingdom: Plantae
Subkingdom: Viridiplantae
Phylum: Tracheophyta
Subphylum: Spermophytina
Class: Magnoliopsida
Subclass: Asteranae
Order: Asterales
Family: Asteraceae
Genus: Erigeron L.
Species: Erigeron speciosus (Lindl.) DC
  • Erigeron conspicuus Rydb.
  • Erigeron macranthus Nutt.
  • Erigeron subtrinervis ssp. conspicuus (Rydb.) Cronquist
  • Erigeron speciosus var. macranthus (Nutt.) Cronquist
  • Erigeron speciosus var. speciosus (Lindl.) DC.
  • Erigeron subtrinervis var. conspicuus (Rydb.) Cronquist
  • Erigeron speciosus var. conspicuus (Rydb.) Breitung
  • Erigeron speciosus var. typicus Cronquist



Perennial herb growing from a woody caudex with blue to white terminal pseudanthia, growing to 80 cm tall.[2] Roots fibrous, rhizomatous.[3] Leaves cauline, glabrous, 3-nerved,[2] lower are ligulate-acute to spatulate, petiolate, upper becoming lanceolate and sessile.[4] Pseudanthia radiate, terminally clustered in groups of 1-13;[2] phyllaries narrow,[5] in 2-3(4) rows;[3] ray florets 65-150, light purple to blue (white), 9-18 mm long;[2] disk florets yellow, 4-5 mm;[5] pappus bristles 20-30;[5] ovaries inferior, becoming 2-nerved achenes.[2]

Bloom Period



Distributed across Washington; British Columbia to Oregon, inland to Nevada, Arizona, the Rocky Mountains and northern Great Plains.[2]


Low to mid-elevation prairies and forest openings.[2]


Use of decoction by the Ramah Navajo people as a contraceptive and to treat menstrual pain.[6]


Native Plant Network Propagation Protocol


Seed sample from 2011 Average Measurement: 1.9 x 0.7 x 0.3 Measurement Range: L: 1.6 – 2.25, W: 0.4 – 0.8, D: .2 – 0.4 Latitudinal Cross Section: elliptical Longitudinal Cross Section: elliptical Shape: Seed narrowed at dimpled hilum, broadening at pappus end. Additional Structure: Seeds have pappus of white hairs 2 -3 times the length of the seed body, arranged in a circular pattern around apex opposite hilum. Color: Seeds brown, hilum and pappus white. Surface: Hilum smooth, seed body lightly hairy, pappus finely barbed.

Photo Gallery


  1. Integrated Taxonomic Information System. Retrieved from
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 WTU Herbarium, Burke Museum, & University of Washington. Retrieved from
  3. 3.0 3.1 Flora of North America. Retrieved from
  4. Bowcutt, F., & Hamman, S. (2016). Vascular Plants of the South Sound Prairies. p. 72.
  5. 5.0 5.1 5.2 Hitchcock, C. L., Cronquist, A., Giblin, D., & Legler, B. et al. (2018). Flora of the Pacific Northwest: an illustrated manual. Seattle: University of Washington Press. pp. 569-574.
  6. Native American Ethnobotany Database. Retrieved from