282 WEEDS AND USEFUL PLANTS. 
2 2. Sear weak, not twining but somewhat Gnlins or supported 
ts by means weil he the ot Si on hk the wares of the stem and we age 
6. P. arifo’‘lium, L bi pot halberd-shaped, acuminate, on long 
petioles ; clusters ra , few-flo weal peduncles glandular-hispid ; 
stamens 6; styles 2; “fruit se lonticalne. 
ARUM-LEAVED Piedaoniin Halberd-leaved Tear-thumb. 
Root annual. & 3-6 feet long, rather coarse, grooved-angled, branching, often pur- 
ple. Leaves 2-5 inches long, and 1~3 inches wide — the midrib and nerves hirsute ; pe- 
doles half an inch to 3 inches long, retrorsely aculeate. Stipules ciliate. Calyx often ‘of 4 
connected sepals, purple, with the Feb. a pale red. 
reso low grounds, along r ts, &c. : throughout the United States. Fl. Aug. 
ip Obs. This - the rere species 
often grow in company,—clamber- 
ing over oshes plants, and fonts ing 
i, e 1 be ches. Both are worth- 
Wy) less, unw: weeds, especial 
among the <p crop of wet mead- 
ows. Ditching and draining are 
remedies for the evil. 
ae A itta’tum, L. Leaves 
a sia acute, on short pe- 
clea clusters capitate ; peduncles 
mooth ; stamens 8 ; styles 3; fruit 
Biaeoly ‘San, angled. 
Sacirrare Poryconum. Arrow- 
leaved Tear-thumb. 
nal. sean = ote feet long, <a 
bran ing, ‘acutel y quadrangular. Leaves 1-3 
San long, and half an inch to an inch a. 
wees y—the pallet and pce re- 
Sti, 
Swampy meadows and thickets: New 
de to Florida. Fl. August. Fr. Septem- 
Obs. Several other 
are not facep ies troublesome, 
they are omitted here. 
3 
a Ee 
Sep DREGE TSS ey 
