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Annual or perennial, mostly glabrous Post Date: Fri, 22 Aug 2008 1:38:15 +0000 Fugitive from Europe. July-Sept. Annual or perennial, mostly glabrous, often glaucous herbs, with erect, simple or branched, usually rigid stems, alternate or basal, entire dentate or runcinate- pinnatifid leaves, those of the stem and branches often reduced to subulate scales, and small erect heads of pink flowers, paniculate, or, solitary at the ends of the branches, opening in the morning. Autor of the post: Undefined Anthers sagittate at the base Post Date: Fri, 22 Aug 2008 1:18:26 +0000 Involucre cylindric or oblong, its principal bracts few, equal, scarious-margined, slightly united at the base, with numerous short exterior ones and sometimes a few of intermediate length. Receptacle flat, naked. Anthers sagittate at the base. Autor of the post: Undefined Pappus of I series Post Date: Fri, 22 Aug 2008 1:05:26 +0000 Style-branches slender. Achenes oblong or linear, terete or columnar, 5 -ribbed, truncate or beaked at the summit, the ribs smooth or rugose. Pappus of I series of rather rigid plumose bristles. Autor of the post: Undefined I P pauciflora Post Date: Fri, 22 Aug 2008 0:49:31 +0000 [Greek, referring to the feathery pappus.] About 16 species, natives of western and cen- tral N Am Pappus brownish, plumose except at the base. I P pauciflora. Autor of the post: Undefined 1 Ptiloria pauciflora (Torr) Raf Post Date: Fri, 22 Aug 2008 0:30:41 +0000 Pappus white, plumose to the base. 2 P ramosa. 1 Ptiloria pauciflora (Torr) Raf BROWN-PLUMED PTILORIA. Autor of the post: Undefined Plains, Neb (?), Kans Post Date: Fri, 22 Aug 2008 0:16:08 +0000 (I F F 3526) Perennial; stem rather stout, striate, rigid, divergently branched, 3-6 dm high. Basal and lower leaves runcinate-pinnatifid, 3-6 cm long, 6-12 mm wide, the upper all short and narrowly linear or reduced to scales; heads somewhat racemose-paniculate along the branches, usually about 5 -flowered; involucre 8-10 mm high; rays 2-4 mm long; pappus brownish, plumose to near the base. Plains, Neb (?), Kans and Wyo. Autor of the post: Undefined (I F F 3527) Similar Post Date: Fri, 22 Aug 2008 0:01:09 +0000 to Tex and Cal Summer. 2 Ptiloria ramosa Rydb WHITE-PLUMED PTILORIA. (I F F 3527) Similar to the preceding species, but commonly lower, bushy -branched. Autor of the post: Undefined Plains and dry, rocky soil Post Date: Thu, 21 Aug 2008 23:48:11 +0000 Basal leaves runcinate-pinnatifid. those of the stem linear, entire, or sometimes runcinate- dentate, the uppermost reduced to small scales; heads numerous, usually solitary at the ends of the branchlets; pappus bright white, very plumose to the base. Plains and dry, rocky soil, western Neb to Mont, and Colo May- Aug It has been confused with P tenuifolia (Torr) Raf Biennial or perennial, erect, usually branched, somewhat succulent herbs, with slender fleshy tap-roots, alternate entire linear-lanceolate long-acuminate leaves, clasping at the base, and long-peduncled large heads of yellow or purple flowers, opening in the early morning, usually closed by noon. Autor of the post: Undefined Anthers sagittate at the base Post Date: Thu, 21 Aug 2008 23:32:39 +0000 Involucre cylindric or narrowly campanulate, its bracts in I series, nearly equal, acuminate, united at the base. Rays truncate and 5-toothed at the apex. Anthers sagittate at the base. Autor of the post: Undefined Pappus- bristles in I series Post Date: Thu, 21 Aug 2008 23:12:54 +0000 Style-branches slender. Achenes linear, terete, or 5 -angled, 5-io-ribbed, termin- ated by slender beaks, or the outermost beakless. Pappus- bristles in I series, plumose, connate at the base, the plume-branches interwebbed. 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