284 WEEDS AND USEFUL PLANTS. 
Fr. shes ecei ipsa etre: Krauser Ampfer. 
usifor Stem 2-3 or 4 feet high, angular-sulcate, smooth- 
panieulatly , teas say aie Radical leaves 8-12 or 15 inches as og 1-20r3 
inc fake wie ; petioles 2-4 in chen. long ; ; the stem-leaves smaller, linear-lanceo Flowers 
in owed Verticillate fascicles, with scarious involucres at base. “ny pel inner 
muc! eal = an the o uter ones ty ire or obsoletely denticulate near the base,— 
each wit oneridexie excrescence, or grain, on the back. 
Moist t grounds mentee; &e.: feaxadncer, Native of Europe. Fl. May ~July. Fr. 
July - 
sce The jedi leaves of this are often used as a pot-herb, or yr 
3? ec the plant is an cr ei and troublesome weed,—and 
ee teen extensively naturalized as to require a vigilant attention 
to keep it in due subjection. | 
** Inner sepals dentate,—one principally graniferous 
2. R. obtusifo'lius, L. “Radical leaves erleriis  aolegh aes obtaile: crenu- 
late; ’ verticils loose and rather dista 
Oxstuse-LEAVED Rumex. Bitter sr Broad-leaved 
Root thickish, branching, brown externally, yellow joey Stem 2-4 feet high, angu- 
peek, roughish, paniculately branched. Radical ~-12 i ives s long, and 4-6 
wi ‘ioles 3-6 inches long. in Gaetsatiad verticillate fascicles. naeestctae 
green, riengehred hiner eet ag with long acute teeth near the base, and one of them 
ge grain on t! 
Grass lots gardens, meadows, &c.: iarodnéda, Native of Europe. 1. June - pas 
Fr. August - Septe mber, 
is species is even more worthless than the preceding ; but— 
although completely naturalized—it is not quite so Rigas The 
Bryne < of either imparts a very slovenly appearance to a meadow or 
ot. 
32. Flowers diecious: herbage acid. 
.3. R. Aceros’etia, L. Leaves lanceolate-hastate—the lobes acute, 
siiceasting ; inner sepals entire. 
Sheep Sorrel. Field Sorrel. 
Fr. Petite Oscille. Germ. Der Sauer — Span. Acederilla. 
"Stem 6-12 or 15 inches high, slender, branching, somewhat angular and furrowed. 
long, 
Leaves 1 - 2 inches long,—the lower ones mostly all eau: pi on petioles as or longer 
than the leayes—the wppero on short petioles, and so se sn pion 
metimes not 
paniculate ome final! 
as becoming purple, —the yerticils 6- 8-flowered,  Pistillate 
plants most Ser thin fie’ stamt 
"Sandy pve: Sapam tures ; about old stumps, &c.: introduced. Native of Europe. Fl 
May. Fr. August. 
Obs. This little species (well known for its eany) is often so abun- 
dant as to be a nuisance on ems Improving the | ially 
by adequate dressings of Lime—is believed to be the best mode of ex: 
pelling this, as well as many — obnoxious plants. 
4. RHE’UM, L. 
RRvBars. 
[From Rha, ancient name of the river Volga,—i sib kanes tithe 
a ee in a double series, persistent and shrivelling. Stamens 
Saunt & Gee cst or sa nd sl pet 
