Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Curtis Clark

Annual to small tree; sap often colored, often milky
Leaves basal, cauline, or both, generally toothed, lobed, or dissected; cauline generally alternate; stipules 0
Inflorescence: cyme, raceme, or panicle (terminal), or flower solitary
Flower bisexual, generally radial; sepals 2–4, sometimes shed ± at flower; petals generally 4 or 6 (or more), sometimes in 2 unlike pairs; stamens 4–many; ovary generally 1, superior, chamber generally 1, stigma lobes 0–many, ovules 1–many
Fruit: generally capsule, dehiscent by valves or pores, generally septicidal
Genera in family: 40 genera, 400 sp.: n temp, n tropical, s Africa; some cultivated (Papaver, Dicentra, Eschscholzia ). Petal length includes any spur or pouch. Hunnemannia fumariifolia Sweet (Eschscholzia-like garden per with free sepals) an uncommon waif in CA. Corydalis, Dicentra, Fumaria formerly treated in Fumariaceae.


Annual; sap colorless
Leaves basal (or some cauline, opposite), generally entire, glabrous to rough-hairy
Inflorescence: flowers solitary, generally terminal and axillary
Flower: sepals (2)3; petals (4 or) 6, free, obovate to oblong, white or yellow, shed after pollination; stamens 4–6, 8–16, or many, free; placentas 3, style 0, stigma lobes 3, ± erect, ovate
Fruit linear or obovate, dehiscent from tip
Seeds many, 0.5–1 mm, ovate to reniform, smooth, shiny, brown or black
Species in genus: 4 species: w North America
Etymology: (Greek & Latin: little poppy)


M. linearis (Benth.) A. Nelson & J.F. Macbr.

Plant 5–25 cm, spreading-hairy
Leaves basal, 25–70 mm, linear
Inflorescence: flowers terminal
Flower: petals 6–15 mm, cream, base yellow; stamens many
Fruit 10–14 mm, obovate
Seed 0.4 mm, reniform-obovate
Ecology: Grassy areas, washes
Elevation: < 1000 m.
Bioregional distribution: w Northwestern California, s Sierra Nevada Foothills, Central Western California, w Southwestern California
Distribution outside California: s Oregon
Synonyms: Hesperomecon l. (Benth.) Greene
Horticultural information: TRY.

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