VICIA 



VICIA 



3465 



DD. Banner glabrous or with few scattered hairs. 



E. Plants perennial: Ivs. without tendrils; Ifts. few. 



F. Lvs., lower with 1-2, upper with 4-6 pairs of Ifts.: 



fls. single, purple-violet. 



4. pyrenaica, Pourr. Perennial, glabrous or nearly 

 so: sts. 4-12 in. long, prostrate or ascending, angular: 

 lower Ivs. with only 1-2 pairs of Ifts., the upper with 



4-6 pairs of Ifts. and 

 unbranched or rarely 

 2-3 -branched ten- 

 drils: fls. solitary, 

 large; calyx sparingly 



eav *- IK /tt pubescent; corolla 



y/E^t&fSR/fllfcW purple- violet: pod 



broadly linear, gla- 

 brous; seed smooth, 

 brown, mottled. S. 

 W. France. 



3929. Vicia americana. ( X M) 



FF. Lvs. with only 1-3 

 pairs of Ifts. : plant 

 resembling a 

 Lathyrus. 



5. oroboides, Wulf . 

 (Orobus lathyroldes, 

 Sibth.& Smith). Per- 

 ennial, glabrous or 

 sparingly pubescent: 

 sts. mostly erect and 

 unbranched, 2-3 ft. 

 tall: Ivs. short-peeled, with 1-3 pairs of Ifts., ending 

 in a sharp point, without tendrils; Ifts. ovate, elliptic 

 to oblong: infl. sessile, mostly 3-7-fld.: fls. Yr-Y^- long, 

 short-pedicelled; calyx-teeth equaling or shorter than 

 the tube; corolla yellowish white to golden: pod linear- 

 oblong, 1-1 H in- long; seed nearly spherical, brown, J^in. 

 diam. S. E. Eu. R.F.G. 22:258. B.M. 2098. 



EE. Plants annual or biennial: fls. violet to bluish: Ivs. 



with tendrils; Ifts. many, small. 



F. Lfts. oblong, oval or obovate. 



6. sativa, Linn. COMMON VETCH or TARE. Annual 

 or biennial, not surviving the winter in the N., more or 

 ]<-- pubescent, 2-3 ft. high: Ifts. 7 pairs or less, elliptic, 

 oblong or oblanceolate, mostly truncate and apiculate 

 at the top, the tendril part of the If. extended: fls. 

 usually 2 in. each axil, about 1 in. long, purplish: pods 

 2-3 in. long when mature. Eu., and naturalized in 

 some parts of the U. S. R.F.G. 22:248. B.B. 2:2621. 

 Much cult, abroad as a forage plant; in this country 

 grown for similar purposes and also somewhat as a 

 cover-crop for orchards. Best adapted to S. E. U. S. 

 and the Pacific coast as a winter crop for green manure 

 or sown with oats, wheat, rye, or barley for hay. As a 

 spring crop it succeeds only where the summers are 

 fairly .cool. Not much injured by a temperature of 10 

 F. but zero weather results in much winter-killing. The 

 name winter vetch is more commonly applied to winter 

 strains of V. sativa in Eu. Seeds sometimes used for 

 making flour. Var. alba, Beck (V. alba, Moench). 

 Fls. white or whitish: seeds mostly whitish to gray. 

 Var. macrocarpa, Moris. Fls. \Yr\Y in. long: seed 

 compressed, J^-^in. diam. 



FF. Lfts., except of the lower Ivs., linear or linear-oblong. 



7. angustifdlia, Linn. Annual, glabrous or pubescent: 

 sts. slender, 1-2 ft. long: Ivs. short-petioled or nearly 

 sessile with 4-8 pairs of Ifts. and an unbranched or 

 2-3-branched tendril; Ifts. linear, lanceolate or oblanceo- 

 late, up to \Yi in. long and Y%vn.. wide: fls. purple, Yr 

 %in. long: pod glabrous, 1-2 in. long. Eu. R.F.G. 

 22:250. B.B. 2:2622. Naturalized and established 

 from Nova Scotia to Fla. The seeds mature earlier 

 than those of V. sativa. In some parts of the S. it often 

 makes up a considerable portion of the hay. 



BB. Infl. distinctly, mostly long-stalked, few- to many-fld. 



c. Fls. %in. long or longer: infl. mostly many-fld. 



D. Lfts. ovate to oblong, never linear to lanceolate, few. 



E. Pairs of Ifts. 10-15. 



8. gigantea, Hook. Perennial, pubescent, high-climb- 

 ing: Ifts. 10-15 pairs, narrow-oblong, obtuse and mu- 

 cronulate: fls. about J^in. long, pale purple, in 7-18-fld. 

 racemes. Calif, and N. Has been offered by dealers 

 in native plants. 



EE. Pairs of Ifts. J+-9. 

 F. Color of fls. nearly white: infl. mostly 8-20-fld. 



9. caroliniana, Walt. CAROLINA VETCH. Perennial, 

 nearly or quite glabrous: Ifts. oblong to linear-oblong, 

 usually obtuse or emarginate: fls. nearly white, Hin. 

 or less long, in several to many-fld. loose racemes. 

 Minn, and Kans. eastward. B.B. 2:2616. Has been 

 offered. 



FF. Color of fls. blue to purple: infl. mostly 6-14-fld. 



G. Shape of Ifts. elliptic-oblong, truncate or retuse at 



the apex. 



10. americana, Muhl. AMERICAN VETCH. Fig. 3929. 

 Perennial, trailing or climbing, 3 ft. long, nearly or 

 quite glabrous: fits. 8-14, elliptic to oblong, obtuse 

 or sometimes emarginate at the apex: fls. purplish, 

 about %in. long, in few-fld. loose racemes: pods 1-1 Y 

 in. long; seed brown, J^in. diam. Moist lands across 

 the continent and as far south as Ky. B.B. 2:2614. 

 Has been offered by dealers in native plants. 



GG. Shape of Ifts. ovate, obtuse at the apex. 



11. dumetdrum, Linn. Annual, glabrous: st. lJ^-8 

 ft. long, trailing or climbing: Ifts. 8-10, ovate to oblong: 

 infl. 2- or mostly 6-14-fld.: fls. H~%in. long; calyx 

 with very unequal large triangular teeth; corolla purple 

 becoming dirty reddish yellow to greenish: pod oblong 

 to oblong-linear, \Yr^ in. long and about %in. broad; 

 seed spherical, about J^in. diam., dark brown. Eu. 

 R.F.G. 22:253. Cult, for forage in Germany. 



DD. Lfts. linear to lanceolate, numerous. 



E. Limb of the banner as long as or longer than its claw. 



F. Color of fls. red or nearly scarlet and purple-striped. 



12. fulgens, Batt. SCARLET VETCH. Annual, 3-5 

 ft., pubescent: Ifts. 8-12 pairs, oblong or lance-linear, 



3930. Vicia vfflosa, the hairy vetch. ( X M 



