. 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 102d meridian. Botany; Botany. 30. OROPHACA Britton, in Britton & Brown, III. Fl. 2 ; 306. 1897. Perennial, silvery or villous-pubescent low tufted herbs, with branched woody caudices, deep roots, membranous scarious stipules, sheathing and united below, and digitately 3-folio- late (rarely 5-foliolate) leaves, resembling those of Lupines. Flowers few, capitate or race- mose, the cluster
. 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 102d meridian. Botany; Botany. 30. OROPHACA Britton, in Britton & Brown, III. Fl. 2 ; 306. 1897. Perennial, silvery or villous-pubescent low tufted herbs, with branched woody caudices, deep roots, membranous scarious stipules, sheathing and united below, and digitately 3-folio- late (rarely 5-foliolate) leaves, resembling those of Lupines. Flowers few, capitate or race- mose, the clusters sessile or peduncled. Keel of the corolla blunt. Pod coriaceous, completely i-celled, ovoid or oval, few-seeded, villous, partly or wholly enclosed by the calyx. [Greek, mountain vetch.] Three known species, the following, and one in Colorado and Wyoming. Type species : Oro~ phaca caespitosa (Nutt.) IJritton. Flowers yellowish, 1-3 together in the axils. Corolla glabrous outside. i. 0. caespitosa. Corolla pubescent outside. 2. O. argophylla. Flowers blue-purple, in peduncled racemes. 3. O. sericea. I. Orophaca caespitosa (Nutt.) Britton. Sessile-flowered Milk Vetch. Fig. 2559. Astragalus triphyllus Pursh, Fl. Am. Sept. 740. 1814. Not Pall. i8co. Phaca caespitosa Nutt. Gen. 2: 98. 1818. Orophaca caespitosa Britton, in Britt. & Brown, 111. Fl. 2 : 306. '1897. Silvery-canescent, densely tufted from a deep root, 2'-4' high. Stipules scarious, imbricated, glabrous, ovate- lanceolate, 3"-4" long; leaves digitately 3-5-foIiolate, slender-petioled; leaflets oblong or oblanceolate, acute or obtusish at the apex, narrowed or cuneate at the base, 6"-8" long; flowers yellowish, 6"-8" long, sessile in the axils of the leaves; calyx-teeth half as long as the tube; corolla glabrous; pod i-celled, sessile, ovoid, acute or acuminate, coriaceous, dehiscent, villous-pubescent, en- closed by the calyx, 2"-3" long. Plains and hills, Kansas. Nebraska and
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
