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Lomatium nuttallii

Nuttall Desert-parsley · Nuttall's Biscuitroot

Family ApiaceaeGenus Lomatium

A rounded head of tiny yellow flowers among very narrow, thread-like green leaves
FlowerAnders HastingsCC BY 4.0

About the plant

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

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
YellowRead from the photograph on this page
Native range
Colorado, Montana, Nebraska, South Dakota, 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.

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

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

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 63 days.

100% germination in 49–63 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lomatium p. 55Public domain
Show the original text
Lomatium (Apiaceae). L. nuttallii germ. 40(100% in 7-9 w), 70 GA-3(none), and 70-40(7%)-70-40(80% in 3-11 w). The germination at 40 is typical of this genus. It is of interest that starting the seeds at 70 slows down the germination at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lomatium p. 55. 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 Moderate Rated by us, not by the source.

Start around April 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 23, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    7 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 9 months from start to step 4. Germination happens during step 4, in 77 days.

80% germination in 21–77 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lomatium p. 55Public domain
Show the original text
Lomatium (Apiaceae). L. nuttallii germ. 40(100% in 7-9 w), 70 GA-3(none), and 70-40(7%)-70-40(80% in 3-11 w). The germination at 40 is typical of this genus. It is of interest that starting the seeds at 70 slows down the germination at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lomatium p. 55. 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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