- Scientific Name: Wyethia angustifolia
- Family: Asteraceae
- Common Names: mule’s ears, California compass-plant, narrowleaf wyethia.
- Synonyms/Misapplications: Alarconia angustifolia DC.
- Codon: WYEANG
|Genus:|| Wyethia Nutt.|
|Species:|| Wyethia angustifolia (DC) Nutt.|
Native, perennial herb growing from a taproot with a large, yellow pseudanthium, to 90 cm tall. Stems and leaves pubescent, stems stout. Basal leaves simple, elongate, petiolate, tapering at both ends, to 50 cm long; cauline leaves smaller, alternate, often sessile. Pseudanthium radiate, usually solitary; phyllaries linear to lanceolate, to 30 mm; ray florets 8-21, 15-45 mm; disk florets 10-11 mm; receptacle convex, paleate; calyx hairy; stamens 5, sagittate, epipetalous, anthers connate around style; pistil 2-carpellate with bifid style, 2 stigmas and an inferior ovary with basal placentation becoming a compressed-quadrangular achene.
Occurring west of the Cascades crest in southwestern Washington, and east in the Columbia River Gorge; Washington to California.
Low elevation meadows and moist, open hillsides.
Raw stems used for food; seeds used for pinole (food) and dried for winter use; decoction of leaves used to reduce fever and induce perspiration; decoction of roots taken as an emetic; poultice of root lather used for lung problems and to draw blisters.
The seed can be dried, ground into a powder and used as a thickener in soups or can be added to cereal flours when making bread etc. Young leaves can be eaten raw. A lemon-yellow dye is obtained from the flowers. A gold to brass dye is obtained from the flowers, leaves and stems.
Soak or stratify seed. Seeds should receive cool-moist stratification 90-120 days for proper germination.
Sample From: 2010
Average Measurement: 7.6 x 2.5 x 2.2
Measurement Range: L: 7 - 8, W: 2 - 3, D: 1.9 - 2.5
Shape: Seed is long and narrow. Seed is narrow at hilum and broadens at opposite apex.
Additional Structures: Pappus that is attached at apex opposite hilum. Pappus fibers are broad at the base and are attached in a circular pattern. Pappus very brittle, and about ½ the length of the seed body.
Color: Hilum white, seed body medium brown, and pappus is tan to off-white.
Surface: Seed is matte with short bristles that are concentrated toward the pappus. Seed has many longitudinal ridges.
Basic Explanations and Assumptions:
The dimensions for the seeds are length x width x depth. The location of the hilum is used as the base of the seed, and the length is measured from hilum to the opposite apex. Where a style is present, the length is measured from the hilum to the bottom of the style. Width is measured at a right angle to the length at the widest part. Depth is measured at a right angle to the intersection of height and width lines.
Measurements included are the mean average for each measurement of ten separate seeds.
All measurements in millimeters unless otherwise noted.
- Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=38675#null
- WTU Herbarium, Burke Museum, & University of Washington. Retrieved from https://biology.burke.washington.edu/herbarium/imagecollection/taxon.php?Taxon=Wyethia angustifolia
- Bowcutt, F., & Hamman, S. (2016). Vascular Plants of the South Sound Prairies. Olympia: The Evergreen State College Press. p. 76.
- 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. 625-626.
- Jepson Herbarium Online Flora. Retrieved from https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=5572
- Native American Ethnobotany Database. Retrieved from http://naeb.brit.org/
- Native Plants of North America. Retrieved from https://www.wildflower.org/plants/result.php?id_plant=WYAN