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Bransford, W.D. and Dolphia
Erigeron speciosus (Lindl.) DC.
Aspen fleabane, Showy fleabane
USDA Symbol: ERSP4
USDA Native Status: L48 (N), CAN (N)
Clusters of leafy stems,1/2-2 1/2 ft. tall, rise from the woody rootstock of this perennial. Each stem bears several showy, nearly 2 in. wide flower heads with from 70-150 blue, or rarely white, narrow rays. A leafy stem branches near the top into leafless stalks, each with one flower head at the end, with many narrow pink, lavender or white rays surrounding a yellow disk. The disk flowers are yellow-orange. The lower leaves of this plant tend to fall off as the season advances.
This Erigeron has one of the showiest heads, reflected in the species name, speciosus, which means pretty. The similar Hairy Showy Daisy (E. subtrinervis) has spreading hairs over most of the stem and leaves.
Plant CharacteristicsDuration: Perennial Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: White , Blue
Bloom Time: Jun , Jul , Aug
, WY Canada: AB
, BC Native Distribution:
Alt. to s. B.C., s. to NM
& AZ; also Black Hills & adjacent WY Native Habitat:
Growing ConditionsLight Requirement: Sun
Soil Description: Dry to moist soils.
Conditions Comments: Showy fleabane will form colonies. Divide mature plants when the rosettes begin to overlap. Remove fallen leaves from nearby trees in the fall, at they can smother the rosettes and cause them to rot.
PropagationDescription: Seeds may be sown outside in late fall or the following spring without any cold treatment. Only a small percentage of the seeds will germinate, so sow thickly. Seeds require light to germinate. A more practical method of propagation is division. Separ
Seed Collection: Nutlets develop rapidly in the 2-3 weeks following bloom period. Collect seedheads in a paper bag when the nutlets begin to turn brown. Air-dry, clean and seal in a stored, refrigerated container.
Seed Treatment: Not Available
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Record Last Modified: 2009-11-23
Research By: TWC Staff