This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Annual diffuse glabrous herbs with small white solitary flowers. Sepals 3, valvate. Glands 3. Petals 3, oblong, entire. Stamens 4-6. Ovary 2-3-lobed nearly to the base, 2-3-celled; stigmas 2-3. Mature carpels 1-3, rugose, indehiscent, fleshy. Seed erect. [In honor of H. G. Floerke, 1790-1835, a German botanist.]
Two species, the following typical one, and the closely related F. occidentalis Rydb., of the western United States.
Floerkea prosperpinacoides Willd. Neue Schrift. Ges. Nat. Fr. 3: 448. 1801.
Slender, weak, 4'-15' long, branching. Leaves thin, slender-petioled, §'-3' long, the segments 5 or 3, distant, lanceolate, oblong or linear-oblong, acute or obtusish, entire or cleft; peduncles slender, elongating in fruit; flowers white, about 1 1/2" broad; sepals lanceolate to ovate-lanceolate, acute, at length much exceeding the fruit; stamens about equalling the petals; ripe carpels nearly globular, about 1 1/2" in diameter, tuberculate above.