ilDENS TRIPARTITA. TrIFID HeMP-AgRIMONY. 



BID&NS Lin. Gen. PL Syngenesia Polygamia ^Squalis. 



Recept. paleaceum. Pappus ariftis ere&is fcabris. Cat. imbricatus. Cor. rarius 

 flofculo uno alterne radiante inftruitur. 



Raii Syn. Gen. 8; Herb^e flore composito discoide seminibus pappo destitutes 



GORYMBIFERJE DICT-ffi* 



BIDENS tripartita foliis trlfidis^ calycibus 'fubfoliofis feminibus eredis. Lin. SyJ. Vegetab. p. 610. 

 , Sp. PL 1 1 65. Fl. Suec. 283. happon. p. 234. 



BIDENS fbliis petiolatis trilobatis et quinque lobatis ferratis floribus circumvallatis. Holler Hlft. n. 121. 



BIDENS tripartita. Scop. Fl. Cam. n. 1090. 



VERBESINA feu Cannabina aquatica flore minus pulchro, elatior et magis frequens. J. B. II. 1073. 



CANNABINA aquatica folio tripartito divifo. BauL pin* 32* . 



EUPATORIUM cannabinum fcemina, Ger. emac. 711. 



EUPATORIUM aquaticum duorum generum. Parkin/, p. 595. Raii Syn. p, 187. Water Hemp- 

 Agrimony, with a divided Leaf. Hudfon. FL Angl. ed. 2. p. 355. Lightjoot 

 Fl. Scot. p. 461. 



RADIX annua, fimplcx, fibrofa, fibris albidis. | ROOT annual, fimple and fibrous, fibres whitifh. 



CAULIS pedalis ad tripedalem, eredus, ramofus (ramis | STALK from one to three feet high, upright, branched, 

 oppofitis), teretiufculus, modice fulcatus, ru- % (the branches oppofite), roundiih, moderately 



bens, folidus, glaber, fcabriufculus. | grooved, of a reddiOi colour, fohd, fmooth 



I to appearance, but (lightly rough to the touch. 



FOLIA oppofita, petiolata, connata, glabra, tripartita, | LEAVES oppofite, {landing on footftalks, which unite 

 aut etiam quinque partita, laciniis profunde | at the bafe, fmooth, divided into three, and 



ferratis, fuprema indivifa, dentato-ferrata, aut | fometimes five fegments, which are deeply 



etiam Integra, pills haud infrequenter ciliata. I ferrated, the uppermoft leaves undivided, either 



% indented at the edge, or entire, and not un- 



| frequently edged with hairs. 



FLORES lutei, terminales, fubnutantes. f FLOWERS yellow, terminal, drooping a little. 



CALYX- Foliola plura, plerumque Integra, lanceo- | CALYX : feveral, fmall, lanceolate leaves, generally 

 lata, ciliata, flores involucri inftar ambientia ; | entire, but edged with hairs furroundmg the 



fquamx calycis communis ovato lanceolate, | flowers like an involucrum ; the fcales of the 



integra, lineis plurimis, nigricantibus, paral- I calyx common to all the florets are^ ovate and 



lelis? P iaa3, marginibus flavefcentibus. fig.l.% pointed, entire at the edge, and painted with 



numerous blackim lines, the edges are yel- 



lowifh. Jig. 1. 

 COROLLUL^E hermaphrodite, tubulofs, infundibuli- | FLORETS hermaphrodite, tubular, funnel-fhaped, of 



formes, lutes, ftriis quinque purpureis externe | a yellow colour, marked externally with three 



notat» ; limbo quinquefido, fubcrcfto. fig. 2. % purplifh ftripes, the limb divided into five feg- 



| ments, which are nearly upright. Jig. 2. 



STAMINA: Filamenta quinque capillaria ; An- f STAMINA : five capillary Filaments? Anthers 



therje in tubum cylindncum coalitas. fig. 3. | united into a cylindrical tube. fig. 3. 



PiSTILLUM : Germen fubcomprcffum, angulatum, | PISTILLUM : Germen flattifh, angular, broaden: at 



fuperne latius, ariftis tribus plerumque inftruc- f top, generally furnimed with three awns, of 



turn, unica breviore ; fig. 3. Stylus fimplex, | which one is fhorter than the reft ; Jig. 3. 



longitudine ftaminum ; Stigmata duo ob- £ Style iimple, the length of the ftamma ; 



Ionia, reflexa. fig. 4, 5- I Stigmata two oblong, turning back, fig 4, 5. 



SEMEN oblongum, compfeffum, angulatum, fufcum, | SEED oblong, flat, angular brown, furmftied with two 



ariftis duabus feu tribus retrorfum fcabro ha- f or three awns, which are hooked or barbed 



matis inftruaum. fig. 6. % downward fig. 6. 



RECEPTACULUM paleaceum, planum, paleis Ian- | RECEPTACLE chaffy and flat fcales or chaff, narrow, 



ceolato-lineanbus, linearis, deciduis. fig. 7 . f marked with lines and deciduous, fig. 7. 



This fpecies of Bidens is much more common than the mmwa, as that is generally found in the water this more 

 frequently occurs on the borders of ponds, rivulets, &c. where it flowers in the months of Auguft and September, 

 at the clofe of which it ripens its feeds. 



It is obvioufly diftinguifhed from the cernua by having its leaves, for the moft part divided into three feg- 

 ments, whence its name; this charafter is more to be depended on than the upnghtnefs of its flowers, as they 

 generally droop a little when the plant is in perfedion. 



Linnaeus, and other writers, recommend it as a plant that will dye both linen and woollen of a yellow colour, 

 for this purpofe the yarn or flax muft be firft fteeped in allum-water, then dried and fteeped 111 a deccd.on of the 

 plant, and afterwards boiled in the decoaion. Bailer. Hift. Helv. p. ^ 



i z * 



