Erigeron speciosus
- Scientific Name: Erigeron speciosus
- Family: Asteraceae
- Common Names: showy daisy, showy fleabane, splendid fleabane
- Synonyms/Misapplications: Erigeron subtrinervis, Erigeron subtrinervis, Stenactis speciosa
- Codon: ERISPE
Contents
Taxonomy
| 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 |
| Synonyms | |
| |
Description
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
June-August[2]
Distribution
Distributed across Washington; British Columbia to Oregon, inland to Nevada, Arizona, the Rocky Mountains and northern Great Plains.[2]
Habitat
Low to mid-elevation prairies and forest openings.[2]
Uses
Use of decoction by the Ramah Navajo people as a contraceptive and to treat menstrual pain.[6]
Propagation
Native Plant Network Propagation Protocol
Seed
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
Photo: Rod Gilbert, 2004
seedling, courtesy of CNLM
References
- ↑ Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=35950
- ↑ 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 https://biology.burke.washington.edu/herbarium/imagecollection/taxon.php?Taxon=Erigeron%20speciosus
- ↑ 3.0 3.1 Flora of North America. Retrieved from http://dev.floranorthamerica.org/Erigeron_speciosus
- ↑ Bowcutt, F., & Hamman, S. (2016). Vascular Plants of the South Sound Prairies. p. 72.
- ↑ 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.
- ↑ Native American Ethnobotany Database. Retrieved from http://naeb.brit.org/uses/search/?string=Erigeron+speciosus
