Family: Hydrophyllaceae

Habit: Annual, erect to spreading, 2 to 5 dm. tall; glandular with a characteristic odor.

Distribution: Scattered about disturbed places and burns in coastal sage scrub, canyons, chaparral and woodlands of the southern Sierra Nevada foothills, San Joaquin Valley, California central coast, the Channel Islands, deserts of Nevada, Arizona, and Baja California, Mexico.

Seed unit: Free seed.

Seed: 1 to 1.5 mm. Dimorphic, some disklike and smooth, others wrinkled and oblong.

Embryo:  Linear embryo surrounded by 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:  2,703 seeds per gram (based on AOSA pure seed units only from 9 samples received for testing from 1999 to 2002).

Range of percent pure seed: 31% to 67%

Range of percent inert: 32% to 68%

Description of inert:  Plant material.

Planting instructions:  400 seeds, TB, 21 days @ 20°C; for fresh and dormant seed, prechill and GA₃ recommended.

References: (link to main reference page)
Hickman, J.C., Ed.  1993.  p. 686.
Munz, P.A. and D.D. Keck.  1968.  p. 519.
Ransom Seed Laboratory