Jepson eFlora
Key to families | Table of families and genera

Key to Papaver

View taxon page for Papaver

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

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [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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