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Erigeron flabellifolius

Fanleaf Fleabane

Family AsteraceaeGenus Erigeron

A small cushion of finely divided gray-green leaves with yellow button flower heads, wedged between rocks
The whole plantPictured: Erigeron compositus, a relativeTim MessickCC BY 4.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
Perennial, Forb/herbPLANTS Database
Flower
White, lavender, light pinkFlora of North America
Native range
Montana, WyomingGBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Fan-leaf fleabane is a rare, tiny daisy, rarely more than 8 cm tall, of the mountains around Yellowstone and Grand Teton national parks, on cliffs, rockslides and alpine meadows. Wikipedia: Erigeron flabellifolius

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around February 15, 2027 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    3/19 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

    1/19 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1, in 49 days.

21% germination in 28–49 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Erigeron p. 32Public domain
Show the original text
Erigeron (Asteraceae). E. flabellifolius germ. 70D(4/19 in 4-7 w)-40(3/19 in 4th w)-70D(1/19 on 3rd d) and 40-70D(1/22 on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Erigeron p. 32. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Protocol 2

DerivedN. C. Deno, 1998

Difficulty Very high Rated by us, not by the source.

Start around January 1, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 3 months from start to step 2. Germination happens during step 2, in 4 days.

5% germination in 4 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Erigeron p. 32Public domain
Show the original text
Erigeron (Asteraceae). E. flabellifolius germ. 70D(4/19 in 4-7 w)-40(3/19 in 4th w)-70D(1/19 on 3rd d) and 40-70D(1/22 on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Erigeron p. 32. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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