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7 L Steelei Post Date: Thu, 21 Aug 2008 10:31:38 +0000 Canadensts. Stem hirsute up into the branches of the inflorescence. 7 L Steelei. Autor of the post: Undefined (b) Achenes beakless Post Date: Thu, 21 Aug 2008 10:19:14 +0000 Outer bracts gradually shorter; heads 16-20 mm high: flowers blue. 8 L pulchella. (b) Achenes beakless or with short necks, thickish ; flowers blue. Autor of the post: Undefined Leaves pinnatifid, the terminal segment Post Date: Thu, 21 Aug 2008 9:59:19 +0000 Leaves oblong to ovate, acuminate, dentate. 9 L villosa. Leaves pinnatifid, the terminal segment commonly triangular. Autor of the post: Undefined N L spicata Post Date: Thu, 21 Aug 2008 9:42:06 +0000 10 L Floridana. Pappus brown; flowers blue to white. N L spicata. Autor of the post: Undefined Leaves oblong or oblong- lanceolate Post Date: Thu, 21 Aug 2008 9:25:58 +0000 1 Lactuca Scariola L PRICKLY LETTUCE. (I F F 3537) Biennial, green and glaucous; stem stiff, leafy, usually paniculately branched, glabrous throughout, or hirsute at the base, 6-20 dm high. Leaves oblong or oblong- lanceolate, denticulate or pinnatifid, sessile or auriculate-clasping, the lowest some- times 25 cm long and 7 cm wide, the upper much smaller; heads 4-8 mm broad, very numerous in an open panicle; involucre cylindric, its outer bracts about one- third the length of the inner; rays yellow; achenes obovate-oblong, about as long as the filiform beak. Autor of the post: Undefined Lactuca saligna L, the WILLOW Post Date: Thu, 21 Aug 2008 9:07:40 +0000 In fields and waste places, Me to S Dak, N J, Ga, Neb, Colo, and Kans Nat from Europe. Aug-Sept. Lactuca saligna L, the WILLOW LETTUCE of Europe, similar to L Scariola, but with runcinate-pinnatifid lower leaves, either spinulose on the midvein or unarmed, has been found in Ohio. Autor of the post: Undefined Biennial, glabrous throughout, leafy up Post Date: Thu, 21 Aug 2008 8:49:15 +0000 2 Lactuca Ludoviciana (Nutt) DC WESTERN LETTUCE. (I F F 3538). Biennial, glabrous throughout, leafy up to inflorescence, paniculately branched, 6-15 dm high. Autor of the post: Undefined 3 Lactuca Canadensis L WILD Post Date: Thu, 21 Aug 2008 8:37:16 +0000 Leaves oblong to ovate-oblong, acute or acutish, 5-10 cm long, auriculate-clasping, spinulose-denticulate to pinnatifid with spinulose segments; heads 6-10 mm broad, numerous in an open panicle; involucre cylindric or ovoid-cylindric, glabrous, its bracts successively shorter and broader, the lower ones ovate; rays yellow; achenes oval to obovate, flat. Plains and banks, Iowa, Minn, and S Dak to Kans and Tex July-Sept. 3 Lactuca Canadensis L WILD OR TALL LETTUCE. Autor of the post: Undefined Stem-leaves sessile or auriculate-clasping, 5-20 Post Date: Thu, 21 Aug 2008 8:17:50 +0000 WILD OPIUM. (I F F 3539) Biennial or annual, glabrous throughout, somewhat glaucous; stem leafy up to the inflorescence, 1-3 M high, branching above into a narrow panicle. Stem-leaves sessile or auriculate-clasping, 5-20 cm long, the uppermost smaller, often lanceolate, acuminate and entire, the basal often 3 dm long, narrowed into petioles ; heads numerous, 4-6 mm broad ; involucre cylindric ; rays yellow; achenes oval. Autor of the post: Undefined Plant 3-12 dm high Post Date: Thu, 21 Aug 2008 8:01:09 +0000 In moist, open places, N S to the N W Terr, south to Ga, Ala, La and Ark June-Nov. Lactuca Canadensis montina Britton. Plant 3-12 dm high ; leaves all lanceolate and entire ; bracts of the involucre purple or purplish. 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