Papaveraceae — New Blog — Ransom Seed Laboratory

Eschscholzia lemmonii E. Greene
Lemmon’s poppy

Family: Papaveraceae

Habit: Annual 5 to 30 cm., orange to deep yellow flowers, glabrous to sparsely hairy.

Distribution: Open grasslands in the southern Sierra Nevada foothills and outer south coast ranges of California.

Seed unit: Free seed.

Seed: 1 to 1.3 mm. wide, net-like ridges, brown, round.

Embryo: Small, basal embryo; copious endosperm.

Purity instructions: Pure seed definition:
AOSA: PSU#1 - Seed, with or without seed coat. Piece of broken seed, with or without seed coat, larger than one-half the original size.

Average pure seed units per gram: 1,768 seeds per gram (based on AOSA pure seed units only from one sample received for testing from 2001).

Range of percent pure seed: 97%

Range of percent inert: 1%

Description of inert: Plant material, dirt.

Planting instructions: 400 seeds, TB, 10 days @ 15°C; for fresh and dormant seed, 15°C and GA3 or KNO3 recommended.

References: (link to main reference page)
Hickman, J.C., Ed. 1993. p. 814.
Ransom Seed Laboratory

Dicentra chrysantha (Hook. & Arn.) Walp.
Golden Ear-drops

Family: Fumariaceae [Papaveraceae]

Habit: Herbaceous perennial; glaucous, erect, with several stems from stout roots, 5 to 15 dm. high. Flowers erect, yellow, 12 to 16 mm.

Distribution: Often found in burns or disturbed places on dry slopes, in chaparral, yellow pine and oak woodland communities from northwestern California and the Sierra Nevada to northern Baja California.

Seed unit: Disseminated from elongated, lance-ovoid, several-seeded capsule (15 to 25 mm. long)

Seed: 1.5 to 2 mm. long, black, subreniform to almost round, densely papillate.

Embryo: Rudimentary embryo in endosperm.

Purity instructions: Pure seed definition:
AOSA: PSU #1 – Seed with or without seed coat. Piece of broken seed, with or without seed coat, larger than one-half the original size.

Average pure seed units per gram: 1,110 seeds per gram (based on AOSA pure seed units only from 3 samples received for testing from 2001 to 2004).

Range of percent pure seed: 99%

Range of percent inert: 1%

Description of inert: Plant material.

Planting instructions: 400 seeds, TB, 21 days @ 15°C; for fresh and dormant seed, 15°C and GA3 recommended.

References: (link to main reference page)
Hickman, J.C., Ed. 1993. p. 812.
Munz, P.A. and D.D. Keck. 1968. p. 212.
Ransom Seed Laboratory