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FOC | Family List | FOC Vol. 7 | Papaveraceae

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

金罂粟属 jin ying su shu

Authors: Mingli Zhang & Christopher Grey-Wilson

Herbs, perennial, yellow or orange lactiferous, rather brittle. Stems 1(-3), erect, terete, striate, pubescent or glabrous. Basal leaves few, long petiolate; blade pinnatipartite or pinnatisect; lobes deeply undulate or irregularly serrate. Cauline leaves 2-7, shortly petiolate, apical 2 leaves (rarely 3) almost opposite, or almost terminal from peduncle bottom, shortly petiolate or sessile; blade like basal leaves. Flowers in corymb or umbel, pedunculate, bracteate. Sepals 2, caducous, broadly ovate, villous. Petals 4, yellow, suborbicular, imbricately arranged. Stamens many (20 or more); filaments filiform; anthers oblong or linear-oblong, 2-celled, longitudinally divided. Ovary ovoid or terete, pubescent, 1-loculed, 2-4-carpellate; ovules many; styles terete; stigmas capitate, 2-4-lobed, lobes alternate with placentas. Capsule narrowly ovoid or narrowly oblong, pubescent, 2-4-valvate from apex to base, with many seeds. Seeds small, tessellate, cristately carunculate.

Three species: China, one in North America (Atlantic coast); two species (both endemic) in China.

1 Plant yellow lactiferous, villous; cauline leaves 4-7; stigma lobes small; capsules oblong, 2.5-3.5 cm, densely brown curved villous.   1 S. sutchuenense
+ Plant orange-red lactiferous, glabrous; cauline leaves 2 or 3; stigma lobes large, almost flat; capsules narrowly terete, 5-8 cm, pubescent.   2 S. lasiocarpum

Lower Taxa


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