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Chamaechaenactis scaposa

Fullstem

Family AsteraceaeGenus Chamaechaenactis

White flower heads of narrow curling florets on a mat of small gray-green spoon-shaped leaves, among pale stones
FlowerAndrey Zharkikh from Salt Lake City, USACC BY 2.0

About the plant

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

Habit
Perennial, Forb/herbPLANTS Database
Flower
White, pinkWikipedia
Native range
Arizona, Colorado, New Mexico, Utah, 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; Wikipedia — Wikipedia contributors; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Fullstem is the only species in its genus: a perennial no more than 10 cm tall, with flower heads usually produced one at a time, made of white to pink disc florets and no rays. Wikipedia: Chamaechaenactis

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 February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 56 days.

100% germination in 42–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Chamaechaenactis p. 117Public domain
Show the original text
Chamaechaenactis (Asteraceae). C. scaposa germ. 70(100% in 7-9 d) and 40(100% in 6-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Chamaechaenactis p. 117. 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 Low Rated by us, not by the source.

Start around March 27, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 9 days to germinate.

100% germination in 7–9 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Chamaechaenactis p. 117Public domain
Show the original text
Chamaechaenactis (Asteraceae). C. scaposa germ. 70(100% in 7-9 d) and 40(100% in 6-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Chamaechaenactis p. 117. 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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