GENus 6. . MORNING-GLORY FAMILY. 47 
4. Convolvulus spithamaéus L. Upright 
or Low Bindweed. Fig. 34309. 
Convolvulus spithamaeus L. Sp. Pl. 158. 1753. 
Calystegia spithamaea Pursh, Fl. Am. Sept. 143. 
1814. 
eres spithamaeus Kuntze, Rev. Gen. Pl. 447. 
1891. 
ees camporum Greene, Pittonia 3: 328. 
1898. 
. Pubescent, or glabrate; stem erect or ascend- 
ing, straight, or the summit sometimes feebly 
twining, 6-12’ high. Leaves oval, short-petioled 
or the uppermost sessile, usually obtuse at both 
ends, sometimes acutish at the apex, and subcor- 
date at the base, 1-2’ long, #’-14’ wide; pedun- 
cles 1-flowered, longer than the leaves: flowers 
white, nearly 2’ long; calyx enclosed by 2 large 
oval acutish bracts which are narrowed at both 
ends and not cordate at’ the base; stigmas ob- 
long, thick. 
In dry sandy or rocky fields or on banks, Nova 
Scotia to Ontario, Manitoba, Florida and Ken- 
tucky. Dwarf morning-glory. Low or bracted- 
bindweed. May-Aug. 
5. Convolvulus arvénsis L. Small Bindweed. 
Fig. 3440. 
Convolvulus arvensis L. Sp, Pl. 153. 1753+ 
Glabrous, or nearly so; stems trailing or decum- 
bent, very slender, 1°-23° long, simple or branched. 
Leaves slender-petioled, ovate or oblong, entire, ob- 
tusish and mucronulate or acutish at the apex, sagit- 
tate or somewhat hastate at the base, 1’-2’ long, the 
basal lobes spreading, acute or obtuse; peduncles 
1-4-flowered (commonly 2-flowered), shorter than 
the leaves, 1-3-bracted at the summit, usually with 
another bract on one of the pedicels; sepals oblong, 
obtuse, 12” long; corolla pink or nearly white, 8-12” 
broad; calyx not bracted at the base; stigmas linear. 
In fields and waste places, Nova Scotia to Ontario, 
Montana, New Jersey, Pennsylvania, Kansas, New 
Mexico and California. Naturalized from Europe. Na- 
tive also of Asia. May-—Sept. Hedge-bells. Bearbind. 
Corn-lily. Withwind. Bellbine. Corn-bind, Lap-love, 
Sheep-bine. 
6. Convolvulus incanus Vahl. Hoary Bind- 
weed. Fig. 3441. 
Convolvulus incanus Vahl, Symb. Bot. 3: 23. 1794. 
Finely and densely canescent, pale, or some- 
times greener; stems procumbent or trailing, 
usually branched, 1°-3° long. Leaves rather short- 
petioled, lanceolate, ovate to linear in outline, 
usually with 2-4 divergent lobes at the base, or 
the lower pair of lobes reflexed, otherwise entire 
or irregularly dentate, obtuse and mucronulate at 
the apex, 1-2’ long; peduncles 1-2-flowered, as 
long as or longer than the leaves, minutely 
bracted at the summit; pedicels 3’-6” long; 
sepals oblong, obtuse or mucronulate, about 3” 
long; corolla white to rose-color; stigmas nar- 
rowly linear; capsule globose, about as long as 
the sepals. 
In waste places, near Lincoln, Neb. (according to 
Webber). In dry soil, Kansas and Arkansas to 
Texas, Arizona and Mexico. Also in southern South 
America. April-Aug. 
