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Shoshonea pulvinata

Shoshone Carrot

Family ApiaceaeGenus Shoshonea

Small heads of tiny yellow-green flowers on a low mat of narrow gray-green leaves, among pale stones.
FlowerMatt LavinCC BY-SA 2.0

About the plant

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

Habit
perennial or subshrubPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Yellow-greenRead from the photograph on this page
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 of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Shoshonea is named for the Shoshone River, which flows nearby in northwestern Wyoming, and it is the only species in its genus. The NRCS database calls it Shoshone carrot, though it looks little like a garden carrot above or below ground. Wikipedia: Shoshonea

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

Start around September 3, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 2, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    40 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    5 germinated in this phase.

Steps after step 3 run on after germination.

about 6 months from start to step 3. Germination happens during step 3, in 35 days.

50% germination in 35 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Shoshonea p. 77Public domain
Show the original text
Shoshonea (Apiaceae). S. pulvinata germ. 40(40% in 10th w)-70-40(50% in 5th w)-70(5%), 70D-40(50% in 3-12 w)-70-40(5%), and 70 GA-3(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Shoshonea p. 77. 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, 1996

Difficulty High Rated by us, not by the source.

Start around October 14, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 13, 2026.

  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. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    5 germinated in this phase.

Steps after step 2 run on after germination.

about 3 months from start to step 2. Germination happens during step 2, in 84 days.

50% germination in 21–84 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Shoshonea p. 77Public domain
Show the original text
Shoshonea (Apiaceae). S. pulvinata germ. 40(40% in 10th w)-70-40(50% in 5th w)-70(5%), 70D-40(50% in 3-12 w)-70-40(5%), and 70 GA-3(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Shoshonea p. 77. 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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