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Alonsoa linearis

Narrow-leaved Mask Flower · Narrowleaf Mask Flower

Family ScrophulariaceaeGenus Alonsoa

A scarlet flower with a yellow throat on a wiry stem, buds behind
FlowerCarlo BresciaCC BY-SA 4.0

About the plant

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

Habit
subshrubPlants of the World Online
Flower
ScarletRead from the photograph on this page
Native range
Bolivia, Ecuador, PeruGBIF 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; 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, 1993

Difficulty Low Rated by us, not by the source.

Start around March 21, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: either

No stated waiting before sowing. Then 15 days to germinate.

90% germination in 12–15 days.

Light and GA-3 both made no difference.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Alonsoa p. 92Public domain
Show the original text
Alonsoa (Scrophulariaceae). A linearis germ. 70(90-100% in 12-15 d) and 40(4%)-70(1%). Light or GA-3 had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Alonsoa p. 92. 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, 1993

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

Start around March 15, 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

    A further 1% germinated after the shift to 70.

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

4% germination.

A cold period wastes nine months and almost all the seed.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Alonsoa p. 92Public domain
Show the original text
Alonsoa (Scrophulariaceae). A linearis germ. 70(90-100% in 12-15 d) and 40(4%)-70(1%). Light or GA-3 had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Alonsoa p. 92. 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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