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 25S ROSACEAE. Vol. II. 8. ARGENTINA Lam. Fl. Franc. 3: 118. 1778. Perennial herbs, with slender stolons, interruptedly pinnate leaves, the flowers solitary, , peduncled. short and broad. Bractlets, sepals and petals 5, or often more. Petals yellow, not clawed. Stamens 20-25, borne around the bas
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 25S ROSACEAE. Vol. II. 8. ARGENTINA Lam. Fl. Franc. 3: 118. 1778. Perennial herbs, with slender stolons, interruptedly pinnate leaves, the flowers solitary, , peduncled. short and broad. Bractlets, sepals and petals 5, or often more. Petals yellow, not clawed. Stamens 20-25, borne around the base of the hemi- spheric receptacle; filaments filiform. Pistils numerous on the receptacle; style lateral, filiform. Achenes with thick pericarp. Seeds ascending, amphitropous. [Latin, referring to the silvery white pubescence of the under side of the leaves.] About 8 species, natives of the north temperate and subarctic zones. Besides the following, 4 others occur in western North America. Type species: Argentina vulgaris Lam. I. Argentina Anserina (L.) Rydb. Silver-weed. Wild or Goose-tansy. Fig. 2249. Potentilla Anserina L. Sp. PI. 495. 1753. Argentina vulgaris Lam. Fl. Franc. 3: 119. 1778. A. Anserina Rydb. Mem. Dept. Bot. Col. Univ. 2 : 159. 189S. A. Babcockiana Rydb. X. Am. Fl. 22: 354. 1908. A. litoralis Rydb. loc. cit. 1908. Herbaceous, tufted, spreading by slender runners i°-3° long. Stipules membranous; leaves petioled. pinnate, 3-18' long; leaflets 7-25, oblong, oblanceolate or obovate, obtuse, the lower generally smaller, often with still smaller ones interspersed, all sharply serrate, nearly glabrous above, white or silky-pubescent be- neath; peduncles , solitary, slender, erect, i- flowered, about equalling the leaves; flower yellow. 8'-i2' broad; petals broadly oval or obovate, entire or emarginate. exceeding the ovate acute calyx-lobes and oval bractlets; stamens about 20; style filiform, lateral; receptacle villous; achenes grooved or grooveless. On s
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