PI. ex. cal, 39, COMPOSITE, C. 208. Calendula. 447 
On rubbish hills; annual or perennial; all the year; 
naturalized. 
Corollas cordial ; also used to reduce saffron. 
XXXIV. 209. HELIANTHUS. Linmeus. Sunflower, 
Pericline hemispherical, spreading ; scales imbricate, 
herbaceous, tip patulous reflexed ; calathides radiated ; 
flowers of the centre hermaphrodite, bellied ; of the cir- 
cumference barren, ligulate, ovate, oblong, very large; cli- 
nanthus flat, broad, chaffy; chaffs linear, parted, short; 
akenium ovate, compressed ; pappus chaffy ; chaffs soft, de- 
ciduous. — Herb tall ; leaves 3-ribbed ; calathide terminal, 
very large ; corolla yellow. 
Helianlhus annuus . Annual sunflower. 
Leaves heartshape, 3-ribbed, hirsute; peduncles thick- 
ened; calathide drooping. 
Flos solis, Rail Hist. 334; Park. 297. 
Flos soils major, Ger.em. 751. 
Helianthus annuus, Lin. S. P. 1276. 
Greater sunflower. Peru marigold. 
Walls and dunghills; annual; June to August. 
Stem from 6 inches to 14 feet high, upright, not branched; 
calathide solitary. 
XXXV. 210. BIDENS. Csesalpinus. Bur-marigold. 
Br acted long, equal, weak, spreading; pericline cylin- 
drical ; scales nearly equal, edges scarious, soft, coloured ; 
calathides flosculous; flowers all hermaphrodite; rarely ra- 
diated, flowers of the rays hermaphrodite or female; cli - 
nanthus convex, chaffy; chaffs similar and equal to the 
pericline-scales ; akenium compressed, 3-angular; pappus 
awned ; awns 2 or 4, rough, persistent, shorter than the 
akenium. — Root-leaves opposite, 5-cut; calathides axillary 
or terminal. 
1. Bidens tripartita. Three-parted bur-marigold. 
Leaves 3-parted ; lobes lanceolate, toothed ; calathides 
flosculous; br acted longer than the calathides; akenium 
spinous ; spines upright, mostly 3. 
Verbesina sen cannabina aquatica bore minus pulchro, elatior et magij 
frequens, Rail Syn. 187, 1. 
Eupatorium cannabinum fosmina, Ger. em. 717, 1. 
Eupatorium aquaticum duorum generam, Park, 595. 
Bidens tripartita, Lin, S. P. 1165. 
Water hemp. Bastard agrimony. Water agrimony . 
