Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera
       
   

Key to Papaveraceae

View taxon page for Papaveraceae

 

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

1. Flower  or petals 4, 1 or both outer spurred or pouched at base (Fumarioideae)

2. Flower biradial; outer 2 petals alike, both pouched at base

3. Plant without leafy stems ..... DICENTRA

3' Plant with leafy stems ..... EHRENDORFERIA

2' Flower bilateral; outer 2 petals not alike, upper spurred at base

4. Fruitcapsule, generally  to , several- to many-seeded ..... CORYDALIS

4' Fruit ± a nut, ± round, 1-seeded ..... FUMARIA

1' Flower ; petals >= 4, not spurred or pouched at base (Papaveroideae)

5. Subshrub to small tree

6. Petals 4(6), yellow, 2–3 cm;   or minutely toothed ..... DENDROMECON

6' Petals 6, white, 4–10 cm; leaf deeply lobed ..... ROMNEYA

5' Annualbiennial herb, occasionally woody at base

7. Leaves entire to minutely toothed; petals generally 6

8. Plant generally glabrousstamens 4–15

9. Basal leaves , linear, fleshy; petals persistent; capsule ovoid, 1.5–2.5 mm ..... CANBYA

9' Basal leaves petioled, spoon-shaped, not fleshy; petals deciduous; capsule linear, to 50 mm ..... MECONELLA

8' Plant long-hairy; stamens > 12

10. Stigmas 3; fruit ovoid, opening by 3 valves, not breaking transversely into units ..... HESPEROMECON

10' Stigmas >= 6; fruit ovoid to widely linear, breaking transversely into 1-seeded,  units ..... PLATYSTEMON

7' Leaves toothed to dissected; petals 4, 6, or more

11. Plant spiny; leaves generally cauline ..... ARGEMONE

11' Plant unarmed; leaves , cauline, or both

12. Hairs generally ± 5–15 mm, wavy; leaves generally basal – ne DMoj ..... ARCTOMECON

12' Hairs 0 or to 3 mm, straight; leaves basal, cauline, or both

13. Ovary, fruit < 3 × longer than wide; carpels > 2; fruit opening by pores ..... PAPAVER

13' Ovary generally > 3 × (fruit > 4 ×) longer than wide; carpels 2; fruit splitting into 2 valves

14. Leaf dissected into ± linear segmentssepals 2, fused into conical cap; receptacle cup-shaped around ovary base; stigma  4–8, linear ..... ESCHSCHOLZIA

14' Leaf deeply pinnate-lobed; sepals 2, free; receptacle not cup-shaped, not around ovary base; stigma lobes 2, not linear ..... [GLAUCIUM]

 

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

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