An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . ed2illustratedflo02brit Year: 1913 Genus 21. MUSTARD FAMILY. 169 21. STANLEYA Xutt. Gen. 2: 71. 1818. Glabrous and glaucous, perennial tall mostly erect and branching herbs, with entire toothed lobed or pinnatcly divided leaves, and large yellow bractless flowers in elongated terminal racemes. Sepals linear, Petals narrow, long-clawed.
An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . ed2illustratedflo02brit Year: 1913 Genus 21. MUSTARD FAMILY. 169 21. STANLEYA Xutt. Gen. 2: 71. 1818. Glabrous and glaucous, perennial tall mostly erect and branching herbs, with entire toothed lobed or pinnatcly divided leaves, and large yellow bractless flowers in elongated terminal racemes. Sepals linear, Petals narrow, long-clawed. Stamens 6, very nearly equal; anthers twisted. Ovary short-stipitate; style short or rone. Siliqups linear, long-stipitate, spreading or recurving, somewhat compressed, dehiscent, the valves with a strong midnerve. Seeds in i row in each cell, numerous, pendulous. Cotyledons straight, in- cumbent. [Xamed for Lord Edward Stanley, President of the Linnaean Society.] .â \bout 3 species, of western North America, the following typical. I. Stanleya pinnata (Pursh) Britton. Stanleya. Fig. 2048. Cleome pinnata Pursh, FI. .Am. Sept. 739. 1814. Stanleya pinnatifida Nutt. Gen. 2 : 71. 1818. Stanleya pinnata Britton, Trans. N. Y. Acad. Sci. 8: 62. :888. Stems stout, 2°-5° tall, sometimes decum- bent. Lower leaves pinnatifid or pinnately divided, or entire, 5'-8' long, i'-3' wide, long- petioled; upper leaves similar, or less divided, or narrowly oblong or lanceolate, entire, short- petioled and narrowed at the base; flowers nu- merous, showy; petals 8''-i2' long; filaments filiform, exserted; siliques 2-3' long, about i' thick, 2-3 times as long as their stipes, spread- ing, downwardly curved, somewhat constricted between the seeds when dry. In dry soil. South Dakota and Nebraska to Cali- fornia, New Mexico and Arizona. Plant with the aspect of a Cleome. May-July. 22. THELYPODIUM Endl. Gen. 876. 1839. [P.\CHVPODiuM Xutt. 1838. Not Lindl 1830.] Erect glabrate biennial or perennial h
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