Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
Bulletin - United States National Museum - Smithsonian Institution
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tHelianthus strumoaus, L.<br />
FLORA OF WASHINGTON AND VICINITY. 91<br />
Not common. September.<br />
Heliauthus strumosus, L., var. mollis, Gray.<br />
P'orms of the precediug with the under surface of the leaves quite downy occur,<br />
and may be referred here. September,<br />
Helianthus divaricatus, L.<br />
July.<br />
tHelianthus decapetalus, L.<br />
July, August.<br />
Helianthus doronicoides, Lam.<br />
September.<br />
HeUanthus tuberosus, L. Jerusalem Artichoke.<br />
Waste places in the city. Late in September and in October.<br />
tActinomeris squarrosa, Nutt.<br />
September.<br />
Verbesina Siegesbeckia, Michx. Crownbeard.<br />
September.<br />
Coreopsis tinctoria, Radius. Tickseed.<br />
Escaped in a few places. June.<br />
t Coreopsis verticillata, L. Whorled Coreopsis.<br />
Middle to end of June. Well worthy of cultivation.<br />
t Coreopsis tripteris, L. Tall Coreopsis.<br />
Bluffs below Chain Bridge, Va., High Island, and near Langley. August.<br />
Coreopsis discoidea, Torr. & Gray.<br />
Holmead Swamp. September.<br />
tBidens frondosa, L. Common Beggar-ticks.<br />
August, September.<br />
tBidens cernua, L. Smaller Bur-Marigold.<br />
Very variable. September, October.<br />
tBidens chrysanthemoides, Michx. Larger Bur-Marigold.<br />
July, August.<br />
tBidens bipinnata, L. Spanish Needles.<br />
August, September.<br />
tHelenium autumnale, L. Sneeze-weed. Autumn Sneezewort.<br />
August,<br />
t Achillea Millefolium, L. Yarrow. Milfoil.<br />
June.<br />
Authemis arvensis, L. Corn Chamomile.<br />
May to October.<br />
tMaruta C'o
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