. Foundations of botany. minute characteristics of the fruit.] I. ERYNGIUM, Tourn. Annual, biennial, or perennial herbs. Stems erect or creep-ing. Leaves simple, mostly linear and spiny-toothed. Flowerswhite or blue, in dense, bracted heads or spikes, flowers brac-teolate. Calyx-teeth rigid, persistent. Petals erect, slender. Fruit top-shaped, scaly or granular, ribs want-ing, oil-tubes usually 5, minute.* DICOTYLEDONOUS PLANTS 159 1. E. yuccaefolium, Michx. Button Snakeroot, RattlesnakeMaster. Perennial. Stem erect, branched above, striate, coveredwith a bloom, 2-3 ft. high. Le
. Foundations of botany. minute characteristics of the fruit.] I. ERYNGIUM, Tourn. Annual, biennial, or perennial herbs. Stems erect or creep-ing. Leaves simple, mostly linear and spiny-toothed. Flowerswhite or blue, in dense, bracted heads or spikes, flowers brac-teolate. Calyx-teeth rigid, persistent. Petals erect, slender. Fruit top-shaped, scaly or granular, ribs want-ing, oil-tubes usually 5, minute.* DICOTYLEDONOUS PLANTS 159 1. E. yuccaefolium, Michx. Button Snakeroot, RattlesnakeMaster. Perennial. Stem erect, branched above, striate, coveredwith a bloom, 2-3 ft. high. Leaves linear, often 2 ft. or more inlength, rigid, covered with a bloom, parallel-veined, fringed with whitebristles. Bracts shorter than the heads, entire, bracteoles similarbut smaller. Flowers white. Fruit scaly. In damp soil.* n. SANICULA, Toum. Slender, erect, perennial herbs. Eootstock short, stout,creeping. Leaves palmately cut. Umbels small, somewhatglobular, irregularly compound ; bracts leafy ; bracteoles few ;.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901
