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 About 150 species, natives of temperate and tropical regions. In addition to the following others occur in the Southern States. Type species: Zanlhoxyhiin Clava-Herculis L. Flowers in small sessile axillary cymes; calyx none. Flowers in large terminal compound cymes ; calyx present. I. Zanthoxylum americanum Mill. P
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 About 150 species, natives of temperate and tropical regions. In addition to the following others occur in the Southern States. Type species: Zanlhoxyhiin Clava-Herculis L. Flowers in small sessile axillary cymes; calyx none. Flowers in large terminal compound cymes ; calyx present. I. Zanthoxylum americanum Mill. Prickly Ash. Toothache-tree. Fig. 2691. Xaiithoxylum americanum Mill. Gard. Diet. Ed. 8, no. 2. 1768. A shrub, or small tree, reaching a maxi- mum height of about 25°, and a trunk diameter of 6'. Leaves alternate, odd- pinnate, pubescent when young, becoming glabrous or nearly so when old; leaflets 3-11, ovate, opposite, dark green above, lighter beneath, nearly sessile, i*'-2' long, crenulate or entire, acutish; flowers green- ish, about li' broad, in sessile axillary cymes, borne on the wood of the previous season and appearing before the leaves; pedicels slender; calyx none; petals 4 or 5; pistils 2-S; follicles black, ellipsoid, about 2' long, on short stipes, 1-2-seeded. In woods and thickets, Quebec to Virginia, especially along the mountains, west to western Ontario, South Dakota. Kansas and Nebraska. Wood soft, light brown ; weight per cubic foot 35 lbs. Angelica-tree. Suterberry. April-May. 2. Zanthoxylum Clava-Herculis L. Southern Prickly Ash. Sea Ash. Pepper-wood. Fig. 2692. Z. Clava-H erculis L. Sp. PI. 270. 1753- Z. carolinianum Lam. Encycl. 2: 39. 1786. A small, very prickly tree, with a maxi- mum, height of 45° and trunk diatneter of 9', the prickles supported on cushions of cork sometimes 8' broad. Leaves alternate,, odd-pinnate, glabrous, shining above, dull beneath; leaflets 5-19. obliquely ovate, nearly sessile, ii'-3' long, acute, crenulate; flowers greenis
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