They feed on flower nectar from a variety of weeds and garden plants including " Lantana " and " Eupatorium ".
32.
The plant was initially described in 1940 by American botanist Dr . Emma Lucy Braun, using the name " Eupatorium deltoides ."
33.
Harper's Virginia garden includes the colored foliage of eupatorium Chocolate, purple smoke bush, cutleaf maples, purple barberries, and annual perilla.
34.
"Eupatorium pilosum " is a perennial herb sometimes over 100 cm ( 40 inches ) tall, spreading by means of underground rhizomes.
35.
Rice's fall garden includes small-flowered asters, white and pink boltonia, purple eupatorium and orange helenium, all American wildflowers in origin.
36.
As with other members of the genus " Eupatorium ", " Eupatorium album " flowers with large numbers of small white heads.
37.
As with other members of the genus " Eupatorium ", " Eupatorium album " flowers with large numbers of small white heads.
38.
One _ hardy ageratum ( Eupatorium coelestinum ) _ is covered with blue flowers that to a nonscientific eye look the same as those on the annual ageratum.
39.
Poisonous parts are also found on such popular woodland flowers as jack-in-the-pulpit, white snakeroot ( Eupatorium rugosium ), bloodroot and baneberry.
40.
No DNA study has yet included a large number of species and sampled widely in Eupatorieae, but 3 studies have investigated Eupatorium and its relatives within the tribe.