Trifolium Arvense. 
Hare’s-Foot Trefoil. 
TRIFOLIUM. Linn. Gen. P /. Diadelphia Decandria. 
Flores fubcapitati. Legumen vix calyce longius, non dehifcens, de- 
ciduum. 
Raii Syn.Gen. 23. Herb.e flore Papilionaceo seu Leguminos^e. 
TRIFOLIUM arvenfe fpicis villofis ovalibus, dentibus calycinis fetaceis villofis aequalibus. Linn. SyJI. 
Vege tab. ed. 14. Murr. p. 689. Sp. P/. p. 1083. FI. Suec. ».608. 
TRIFOLIUM caule ramofo, foliis lanceolatis ferratis, fpicis villofis ovatis. Hali. Hijl. n. 373. 
TRIFOLIUM arvenfe. Scopoli FI. Carn. p. 83. v. 2. 
TRIFOLIUM arvenfe humile fpicatum f. Lagopus. Baub. Pin. 328. 
LAGOPUS trifolius. J. Bauh. Hifl. 2. p. 377. 
LAGOPUS live Pes Leporis. Ger. emac. 1193. 
LAGOPUS vulgaris. Park. 11 07. Rail Syn. p. 330. 
Hare’s-Foot or Hare’s-Foot Trefoil. Hudfon FI. Angl. ed. 2. p. 326. Lightfoot FI. Scot.p. 406. 
RADIX annua, fufiformis, limplex, albida. < 
CAULIS pedalis, fubereftus, ramofus, teres, lasviuf- 1 
culus, pilis crebris, mollibus, albis, cane- 1 
fcens. 
RAMI alterni, breviufculi, patulo-ere&i. 
FOLIA ternata ; foliola aequalia, oblongo-obovata, 1 
emarginata, leviter ftriata, pilofa. 
STIPULAE, bicufpidatae, apicibus fubulatis, ftriatae, 
Uriis interdum rubris. 
FLORES parvi, albi, in capitulis terminalibus, fubo- 
valibus, pilofillimis, cano-carneis. 
CALYX : Perianthium tubulatum, 5-dentatum, 
ilofiflimum, albidum, dentibus fubaequali- 
us, longitudine tubi, fetaceis, rubris, fg. 1. 
pili cani fub microfcopio refti, longilfimi. 
COROLLA papilionacea, calyce brevior, alba; Vex- 
illum obovatum, obfolete crenulatum ; Al.e 
anguftas, dimidio breviores ; Carina obtufa 
alis brevior, fg. 2. 
STAMINA diadelpha, fimplex et novemfidum. An- 
thers fimplices. 
PISTILLUM: Germen fubovatum ; Stylus fubula- 
tus, afcendens ; Stigma fimplex. 
SEMEN fubovatum, glabrum, virefcens, calyce tec- 
tum, fg. 3. excerptum, fg. 4. 
ROOT annual, tapering, fimple, whitifli. 
STALK about a foot high, nearly ere£l, branched, 
round, fmoothifn, grey, with numerous foft 
white hairs. 
BRANCHES alternate, fhortifh, betwixt upright and 
fpreading. 
LEAVES growing three together, equal, oblong-obo- 
vate, emarginate, faintly ftriated, hairy. 
STIPULAE two-pointed, tips awl-fhaped, ftriated, 
veins fometimes red. 
FLOWERS fmall, white, in terminal heads fomewhat 
oval, very hairy, of a greyifh flefh colour. 
CALYX : a tubular Perianthium of five teeth, very 
hairy, whitifh, teeth nearly equal, as long as 
p the tube, briftle-fhaped, and red, fg. 1. the 
hairs grey, magnified appear ftraight, and 
very long. 
COROLLA papilionaceous, ftiorter than the calyx ; 
Standard obovate, faintly notched : Wings 
narrow, ftiorter by one half, Keel obtufe, 
ftiorter than the wings, fg. 2. 
STAMINA in two bodies, one fingle, nine united ; 
Anthers fimple. 
PISTILLUM: Germen fubovate ; Style tapering, 
afcending ; Stigma fimple. 
SEED fomewhat ovate, fmooth, greenifh, covered by 
the calyx, fg. 3. taken out, fg. 4. 
The Trifolium arvenfe , though not to be found in every walk that one takes about London is common enough 
infandv and gravelly foils, and in light arable lands, which it chiefly affefts ; we have obferved it molt fre- 
quently about Charlton ; in the fand pits behind the Church it may be found with certainty. 
There is fcarcely any tribe of plants which vary more in their inflorefcdnce than the Trefoils (fee the feveral 
foecies figured in this work) the arvenfe differs remarkably from all our others, the flowers growing in lott, 
oblong, hairy heads, of a light colour, which have a moll pleafing appearance, and render the plant very 
confpicuous, it is from thefe, as is well known, it has very generally acquired the name of Hare s-Foot. 
From what we have obferved, the feeds in many of the fpecies of this genus are not Mattered abroad as in 
inoft of the leguminous plants, but vegetate in the heads as they lie on the ground ; we have noticed this ceconomy 
in the prefent as well as other fpecies ; how far the whole genus is fubjedt to it deferves inquiry. 
Linn asus. in his Flor. Suec. confiders the Lagopus perpufllus fupinus perelegans maritimus Lobelii of Rays 
Synopfs, p. 330. t. 14. f. 2. as a variety merely, having found it to have an annual root, and to become like 
the other on being cultivated. 
