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 2. Salsola pestifer A. Nelson. Russian Thistle or Cactus. Fig. 1714. 5. Kah rosacea Pall. III. PI. 36, pi. 28, f. i. 1803. Not S. rosacea L. S. Kali tenuifolia F. W. Meyer, Chlor. Han. 470. 1836. 5'. pestifer A. Nelson, Rocky Mt. Bot. 169. 1909. Similar to the preceding species, but bushy branched, the branches usua
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 2. Salsola pestifer A. Nelson. Russian Thistle or Cactus. Fig. 1714. 5. Kah rosacea Pall. III. PI. 36, pi. 28, f. i. 1803. Not S. rosacea L. S. Kali tenuifolia F. W. Meyer, Chlor. Han. 470. 1836. 5'. pestifer A. Nelson, Rocky Mt. Bot. 169. 1909. Similar to the preceding species, but bushy branched, the branches usually slender. Leaves and outer branches usually bright red at matu- rity ; leaves not noticeably swollen at the base, linear, prickle-tipped, less fleshy; calyx mem- branous, veiny, its wing as long as the ascending lobe or longer. In cultivated fields and waste places, New Jersey to Ontario, the Northwest Territory, Kansas and Washington. A very troublesome weed in many parts of the Central and Western States. Naturalized from northern Europe or Asia. July-Sept. Family i8. PHYTOLACCACEAE Lindl. Nat. Syst. Ed. 2, 213. 1836. PoKEWEED Family. Herbs (some tropical species shrubs or trees) with alternate entire mostly exstipulate leaves, and perfect regular polygamous or monoecious usually racemose flowers. Calyx 4-5-parted or of 4 or 5 distinct sepals, its segments or sepals imbricated in the bud. Petals wanting. Stamens as many as the calyx-segments or sepals and alternate with them, or more numerous, hypogynous; filaments subulate or filiform, distinct or united at the base; anthers 2-celled, the sacs longitudinally dehiscent, often nearly separated. Ovary superior, several-celled in most of the genera ; ovules solitary in the cavities, amphitropous. Styles as many as the carpels, short or none; stigmas linear or filiform. Fruit a berry in the fol- lowing genus, capsular or samaroid in some others. Endosperm mealy or fleshy. About 22 genera and iio species, mostly in the tropics.
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