The Manual of the Botany of the Northern United States / Including the District East of the Mississippi and North of North Carolina and Tennessee

by Asa Gray

2. Stylophorum. Pod bristly; style distinct; stigmas and placentas 3–4.

3. Chelidonium. Pod linear, smooth; style almost none; stigmas and placentas 2.

4. Glaucium. Pod rough, long-linear, 2-celled by a spongy partition; style none.

[+][+] Pod 4–20-valved, dehiscent only at the top or to the middle.

5. Papaver. Ovary incompletely many-celled; stigmas united into a radiate sessile crown.

6. Argemone. Stigmas (sessile) and placentas 4–6. Pod and leaves prickly.

1. SANGUINÀRIA, Dill. Blood-root.

Sepals 2. Petals 8–12, spatulate-oblong, the inner narrower. Stamens about 24. Style short; stigma 2-grooved. Pod oblong, turgid, 1-celled, 2-valved. Seeds with a large crest.—A low perennial, with thick prostrate premorse rootstocks, surcharged with red-orange acrid juice, sending up in earliest spring a rounded palmate-lobed leaf, and a 1-flowered naked scape. Flower white, handsome, the bud erect, the petals not crumpled. (Name from the color of the juice.)

1. S. Canadénsis, L.—Open rich woods; common. April, May.

2. STYLÓPHORUM, Nutt. Celandine Poppy.