Pentstemon laevigatus

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Standard Cyclopedia of Horticulture

Pentstemon laevigatus, Soland. (Chelone Pentstemon, Linn.). Tall and slender. 2-4 ft., more or less glaucous: lvs. rather firm, purplish, somewhat glossy, ovate to ovate- oblong-lanceolate and clasping, the radical ones oblanceolate or broader, all small-toothed: infl. long and loose; fls. about 1 in. long, white and sometimes tinged with color, rather slender, narrow at the base, the short lobes not wide-spreading, the small lower lip bearded at the base. Pa., west and south. B.M. 1425.—A common plant, best known in the following form.

Var. Digitalis, Gray (P. Digitalis, Nutt. Chelone Digitalis, Sweet). Very tall, 4-5 ft., with larger white abruptly inflated fls. B.M. 2587.—Sometimes becomes a weed in old fields, from Maine south and west, but probably not indigenous in all this range. It is in cult., as a border plant. By some authors kept distinct as a species. P. Smallii, Heller, is a handsome allied species from N. C. and Tenn., with bright pink- purple gibbous corolla, pubescent or puberulent sts.: root-lvs. oval or ovate; st.-lvs. lanceolate or ovate- lanceolate, smooth both sides, serrate. CH


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