3 — ROSA ARVENSIS Huds. 
Rosa arvensis : ramis flaccidis, longe prostratis, saepe rubrobruneis, glaucis ; 
aculeis sparsis, robustis, conformibus, uncinatis; foliolis 5-7 ovalibus, acutis, parvis, 
glabris, simpliciter grosse serratis ; rhachi glabra vel obscure pubescente, vix glan- 
dulosa ; stipulis adnatis, glanduloso-ciliatis, apice divergentibus ; floribus paucis ; 
pedunculis elongatis, glandulosis; bracteis glabris, lanceolatis; calycis tubo turbinato; 
lobis brevibus, ovatis, dorso nudis, exterioribus parce appendiculatis ; petalis albis ; 
stylis glabris, coalitis, longe protrusis ; disco longe, conico ; fructu subgloboso, 
parvo, serotino ; sepalis caducis. 
R. arvensis Hudson, FI. Angl. p. 192 (1762). — Linnaeus, Mant . p. 245 (ex 
parte) (1767). — Smith in Eng. Bot. vol. iii. t. 188 (1794). — Lawrance, Roses , t. 86 
(1799). — Guimpel, Willdenow & Hayne, Abbild. Deutsch. Holzart. p. 126, t. 95 
(1815). — Lindley, Ros. Monogr. p. 1 12, No. 62 (1820). — Hooker in Curtis, El. Loud. 
ed. 2, vol. iv. t. 123 (1821). — Trattinnick, Monogr. Ros. vol. ii. p. 103 (1823). — Seringe 
in De Candolle, Prodr. vol. ii. p. 597 (1825). — Syme, Eng. Bot. ed. 3, vol. iii. p. 231, 
t. 476 (1864). — Baker in Journ. Linn. Soc. vol. xi. p. 241 (1869). — Christ, Rosen 
Schweiz , p. 195 (1873). — Deseglise in Bull. Soc. Bot. Belg. vol. xv. p. 214 (Cat. Rais. 
Ros. p. 45 [1877]) (1876). — Crepin in Bull. Soc. Bot. Belg. vol. xviii. p. 323 (Primit. 
Monogr. Ros. fasc. v. p. 569 [1880]) (1879) ; vol. xxv. pt. 2, p. 203 (1886) ; vol. xxxi. 
pt. 2, p. 71 (1892). — Borbas in ALT. A had. Math. S. Termdszettud Kozlemenyek, 
xvi. Kotet. p. 343 (Ros. Ilung. p. 343) (1880). — Burnat, El. Alp. Mar. vol. iii. p. 25 
(1899). — Keller in Ascherson & Graebner, Syu. Mitteleur. El. vol. vi. p. 39 (1900). 
R. sylvestris Herrmann, Dissert, p. 10 (1762). 
R. repens Scopoli, El. Carniol. ed. 2, vol. i. p. 355 (1772). — K. G. Gmelin, El. 
Bad. Alsace , vol. ii. p. 418 (1806). — -Jacquin, Fragni. p. 69, t. 104 (1809). — Rau, 
Enum. Ros. p. 40 (1816). — K. Koch, Dendrol. vol. i. p. 264 (1869). 
R. scandens Moench, Verz. p. 118 {non Miller) (1785). 
R. Herporhodon Ehrhart, Beitr. zur Nat urk. vol. ii. p. 71 (1788). 
R. canina , var. sylvestris Roth, FI. Germ. vol. ii. pt. 1, p. 560 (1789). 
R. Halleri Krocker, El. Sites . vol. ii. pt. 1, p. 150 (1790). 
R. fuse a Moench, Metli. p. 688 (1794). 
R. serpens Wibel, Prim. FI. IVerth. p. 265 (1799). — Kirschleger, FI. Alsace , 
vol. i. p. 242 (1852). 
R. sempervirens Roessig, Die Rosen , No. 32 (non Linnaeus) (1802-20). 
R. glauca Dierbach, El. Heidelberg, vol. i. p. 140 (1819). 
R. arvensis , J 3 Sims in Bot. Mag. vol. xlvi. t. 2054 (1819). 
Bush not more than 2-3 feet high when not supported ; branches long, flaccid 
and trailing, in exposure red-brown and glaucous ; prickles uniform, stout, scattered, 
strongly hooked. Leaflets 5-7, small, oval, acute, simply coarsely serrated, glabrous, 
often glaucous green above, paler and rather glaucous below ; petioles glabrous or 
faintly pubescent, very slightly glandular; stipules adnate, somewhat gland-ciliated, 
with free, ovate, divergent tips. Flowers few, in a corymb; pedicels long, glandular; 
11 c 
