B I D 



B I D 



equal, oLIonfj, clianncUcd, concave. Cot; compound, uni- 

 form, tiitnilar ; corolluleshermaplivoditc, tubular. Proper. 

 onc-petalled, fuiincl-form ; border five-cleft, ereif^. Siiim, 

 fibmcnts five, capillaiy, very fliort ; anther cylliidric, tu- 

 bular. Pifl. germ oblongf ; ftyle iimple, the length of the 

 ftamens ; llignias two, oblong, reflex. Per. none : calyx 

 unchanged. Sciih fohtary, obtnfe, angular; down with 

 two or more awns, oblong, flraight, acute, rough-hooked 

 backwards. Rec. flat, chaffy ; chafTs deciduous, flattifli. 

 0!)f, In moll of the fpecies an expanding tive-lcaved calycle 

 furrounds the compound flowers. Verbcfna diiltrs from 

 Biikni only in having a ray. Sometimes the corolla has one 

 or two radial florets. Reich. 



Eir. char. Cal. imbricate. Cor. fometimes but feldom with 

 a flofculc or two in the ray. Sad crowned with ereft, 

 fcabro\is awns. Rccepl. chaffy. 



Species, i. B. tr'ipart'ila, trifid water-hemp-agrimony, 

 or bur-marvgold. Lin.fp.pl. 1165. Hudf. 355. With. 

 706. Hull'. 181. Relh.308. Sibth. 248. Abbot. 177. 

 Curt. Lond. fafc. 4. t. 57. Smith. Fl. Brit. 357. l. 

 Verbefma fen cannabina aquatiea, flore minus pulchro, 

 elatior et magis frequens. Raii Synop. 187. Eupatjrium 

 cannabinum focmina. Ger. cm. 711. B. Conyza pa- 

 luflris, fol. trij)artito divifis. Loes. prn(f. 53. ic. 10. 

 " Leaves trifid, calyxes fomcwhat leafy, feeds erecl." Root 

 annual ; Hem from one to three feet hiirli, with oppofite, 

 reddifli branches, jjatent, leafy, obtufely quadrangular, 

 furrowed, and fmooth ; leaves oppofite, fmooth, deep fer- 

 rate, trifid or quinquefid : flowers terminating, folitary, 

 fomcwhat ercdl, with undivided patent leaves ; leaflets of 

 the calyx unequal, plane, fmooth, (Ireaked with brown ; the 

 flofcnks uniform, tubulofe, yellow ; feeds comprefTed, two 

 or three-angled, the angles backward rough, two or three 

 awns, terminating, fomjwhat ereft, yellow, three-cornered, 

 prickly backward ; t!ie chaffs of the receptacle reftmbllng 

 the leafl..ts of the calyx, but narrower. It is frequent in 

 places inundated, and on the brinks of ditches : flowers in 

 Augull and Seplemljer. T';is plant dyes a deep yellow ; 

 for which purpofe the thread or yarn mull be firll lleeped 

 in alum water, then dried and ftceped in a decofiion of the 

 plant, and afterwards boiled in the decoftion. As by a 

 chemical analyfis it is found to poffefs much the fame qua- 

 lities as verbefina acmella, it may probably have the fame 

 good effefts in expelling the Hone and gravel. 2. B. mi- 

 nima^ nodding bur-marygold. Lin. fp.pl. 1165. Reich. 

 3. 703. Hudf. ed. I. 310. Fl. Dim. t. 312. Abbot. 

 178. With. 883. 7. Curt. Lond. 3. 55. B. tripartita. /?. 

 Hudf. 55 J. B. Ctrnua. 7. Smith. Fl. Br. 357. Verbefina 

 minima. Dill, in Raii Syn. 188. t. 7. f. 2. GiiT. 167. 

 A pp. 66. «' Leaves lanceolate feffile ; flowers and feeds 

 eredi." This was firfl; marked by Dillcnius for a dilliiia 

 fpecies. Haller thought it to be no more than a variety of 

 the cernua, in which he has been followed by all o-ar Britifli 

 botanifts. Found in dried marlhes. 3. B. nodi/lora, fcfi'ile- 

 flowtred bidens. Lin. fpec. i\G^. Dill, tlth." t. 44. f. 52. 

 Reich. 3. 704. " Leaves oblong, quite entire, one-toothed, 

 ftem dichotomou;, flowers folitary, feHile." An annual 

 plant, riling with Hems eight or nine inches high, roundifli, 

 rough, with white hairs, purple at the bafe. A native of 

 the Eaft Indies ; cultivated at Eltiiam by Dr. Sherard, in 

 173Z. 4. m. tenella, Lin. Spec. 1166. Reich. 3.704. 

 Amoen. 6. afr. 47. " Leaves linear, peduncles capillary, 

 calyxes moilly four-leaved, feeds ereft five-fold." Stem 

 filiform, puiplilh, fubtrichotomous, fix or fevcn inches in 

 height. An annual, and a native of the Cape of Good 

 Hope. 5. B. cernua, drooping watcr-hemp-agrimony, or 

 bur.mar)-gold. Sp. pi. 1165. Hudf. 356- With.^oj. 



Hall. 1 Si. Rclh. 309. Sibth. 248. Abbot. 177. Curt. 

 Lond. fafc. 3. t. 55. Fl. Dan. t. 841. Smith. Fl. Brit. 

 357. 2. Pet. herb. t. 20. f. 6. Raii hill. 361. n. 2. 3. 

 V'crbefina pulchriore flore luteo. Raii fyn. 187. Bauli. 

 hill. V. 2. 1074. Coreopfis bidens. Sp. pi. 12^1. Chry- 

 fanthemum cannabinum bidens, foliis integris. Morif. hilt. 

 t. 6, t. 5. f. 22. E\ipatorium cannabinum chryfanthemum. 

 Barrel, ic. t. 1209. Conyz.a palullris, foliis ferratis. Lo-j. 

 prufT. 54. t. II. "Leaves lanceolate, llem-clafping, flowers 

 nodding, feeds ercft." I'loot annual ; Hem from one to 

 two feet high or more, upright, branched, a little haiiy, 

 purplilh, dotted witli red, round at bottom, flriated at 

 top, v.'ith branches oppofite, nearly upright, leaves oppofite, 

 moderately connate, undivided or with dillant ferratiires, 

 fpreading, fm.ooth on both fides ; peduncles Hriated ; flowers 

 yellowifh-grecn, finally drooping, generally radiate ; calyx 

 confining of about feven leaves, finely ferrate at the edge, 

 ribbed, turning b::ek, and longer than the corolla ; with 

 eight corollets in the circumference, hermaphrodite like ti'e 

 central ones, but with the tube more tumid and depreffrt'. 

 In places overflowed for a long time, they change into li- 

 gulate neutral corollets : receptacle pyramidal, four-cor- 

 nered ; leeds with four awns, two of which are larger ; the 

 prickles pointing downwards. This flowers a niontli later 

 than the tr'iparUta ; nnd in this Hate has a llrong fmtl', not 

 very difagreeable. A native of rooft parts of Europe. Haller 

 obferves, that ccreopfs h'nlcns ot Linnsus diflers in no ref- 

 peCl from B. cernua, except in having radiate florets in the 

 circumference : hence Dr. Stokes concludes, that I'ukns and 

 coreopfis form one genus. Found at Ditchingham in Norfolk, 

 and Tarporley in Chefliire ; irequent in Ireland. 6. B. 

 froniiofa, fmooth-llalked bidens. Lin. Spec. I J 66. Gxr'n. 

 frud. 2. 412. Reich. 3. 704. Berkli. dilT. t. 5. f. 5. 

 Chryfanthemum, &:c. Mor. hill. 3. 17. f. 6. t. 5. f. 20. 

 " Leaves pinnate, ferrate, marked with lines, fmooth ; 

 feeds erect ; calyxes leafy ; Hempolifhed." The Hem riles 

 about three feet high, fending out many horizontal branches, 

 from the ends of which are produced cluHers of yellow 

 flowers. It grows naturally in Virginia, Maryland, and 

 Canada, whtre it is often a troublefoine weed. It was cnl- 

 tiv;.te<l by Mr. Miller in 1752. l.Hj.pUofa, hairy bidens. 

 Lin. Spec, i ■66. SyH. 732. Reich. 3. 705. Dill. elth. 

 t.43. f. 51. Thunb. jap. 307. Lour, cochin. 488. Gcertn. 

 frudt. 2. 412. ,S. B. Chinenfis. Agrimonia Molucca. 

 Rumph. Amb. 6. 38. t. 15. f. 2. " Leaves pinnate, 

 fomewhat hairy. Hem with bearded joints, calyxes with a 

 fnnple involucre, feeds diverging." A native of America, 

 and of Tongataboo in the South Seas. B. of China rc- 

 fembles the American ; but in the latter the leaflets are 

 united, in the former they are diilinft ; and the feeds of the 

 American have from two to five awns, and in the Chincfe 

 always four. The American fort was cultivated in 1732 by 

 Dr. Sherard. 8. B. b'ipinnala, hemlock-leaved bidens. Lin. 

 Spec. 1166. Reich. 3.705. Lour. cochinch.4S8. Chryfan- 

 themum. Herm. par. t. i:;3. Mor. hift. 17. n. 24. f. 6. t. 7. 

 f. 23. " Leaves bipinnate, gaflied, calyxes involucred, co- 

 rollas half-radiated, feeds diverging." An annual plant ; a 

 native of Virginia; cultivated in Kew garden in 1699. 

 Loureiro fays, it is a native of China and Cochinchina. 9. 

 B. mvca, fnowy bidens. Lin. Spec. 1 167. Reiclu 3. 706. 

 Ddl. elth. t. 47. f. 5j. Swartz obf. 296. /5. Dill, eltli. t. 

 47- f- S^- 3- V- l^ill- elth. t. 46. f. 54. " Leaves fimple, 

 cordate-ovate, acuminate, branches trichotomons, ferrate, 

 flowers hemifpherical, peduncles elongated." A native of 

 Jamaica, in elevated paHurcs, and on the fea-coaH of the 

 fouthern parts. Mr. Milkr fays, it grows naturally in South 

 Larohna, and alfo at Campeachy ; cultivated at Eltham in 



17^2. 



