Jepson eFlora
Key to families | Table of families and genera

Key to Papaver

View taxon page for Papaver

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Style present; stigma head-like, lobes 4–11 ..... P. heterophyllum

1' Style 0; stigma disk-like, lobes 4–20

2. Cauline leaf base clasping; fruit 3–5 cm, round ..... [P. somniferum]

2' Cauline leaf base not clasping; fruit 1–2 cm, narrowly obovate to round

3. Peduncle hairs appressed; leaf segments linear to lanceolate; fruit bristly

4. Fruit oblong to club-shaped, hairs sparse, soft ..... [P. argemone]

4' Fruit obovate to round, hairs dense, stiff ..... P. hybridum

3' Peduncle hairs 0 or spreading; leaf segments oblong to lanceolate; fruit glabrous

5. Petals 10–20 mm; peduncle glabrous or soft-hairy; fruit narrowly obovate; native, after fire or disturbance ..... P. californicum

5' Petals 20–40 mm; peduncle bristly; fruit widely obovate to round; alien, from cultivation ..... P. rhoeas


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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