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FNA | Family List | FNA Vol. 3 | Papaveraceae

5. Stylophorum Nuttall, Gen. N. Amer. Pl. 2: 7. 1818.

[Greek stylos, style, and phoros, bearing, in reference to the conspicuous style, unusual in the family]

Robert W. Kiger

Herbs , perennial, caulescent, from stout rhizomes; sap yellow to orange. Stems naked above base except for 2-3 leaves subtending inflorescence. Leaves: basal rosulate, petiolate; cauline subopposite, sessile; blades 1-2× pinnately lobed. Inflorescences terminal, umbelliform, few-flowered; bracts present. Flowers: sepals 2, distinct; petals 4; stamens many; pistil [2-](3-)4-carpellate; ovary 1-locular; style distinct; stigma shallowly 3-4(-5)-lobed. Capsules nodding, [2-](3-)4-valved, dehiscing from apex. Seeds few to many, arillate. x = 10.

Species 3 (1 in the flora): North America, China.

Stylophorum is most closely related to Hylomecon Maximowicz, a monotypic genus from eastern Asia, and to Chelidonium .

Lower Taxon


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