Part 23

"Throughout Eastern and Central Texas. Dr. Harvard remarks that it

is one of the commonest weeds about the streets of San Antonio."

(Coulter). Hunter: in waste places and open town lots of which it

takes possession. Honey yield good in favorable seasons when not too

dry. White pollen. April, November.*

ROMAN WORMWOOD. Ambrosia artemisiaefolia L.

Composite family. Compositae.

"A common weed of waste grounds, extremely variable." (Coulter). Dry

upland soils and waste places; probably pollen only. July, August.*

TALL RAGWEED. Ambrosia aptera DC.

Composite family. Compositae.

"Low grounds in Southern and Western Texas." (Coulter). Hunter:

along field fences and low places. Some honey but more pollen of a

resinous nature. July and August.*

GREAT RAGWEED. Ambrosia trifida L.

Composite family. Compositae.

"Moist river banks throughout Eastern and Central Texas." (Coulter).

College: in low moist creeks and along Brazos river. Honey yield not

important, but yields much pollen. July and August.*

COCKLE-BURR. CLOT BURR. Xanthium Canadense Mill.

Composite family. Compositae.

"Alluvial shores and waste ground." (Coulter). Hunter: along creeks,

in pastures and fields; not important; furnishes pollen late in the

fall. September, October.*

CONE FLOWER. NIGGER HEAD. Rudbeckia hirta L.

Composite family. Compositae.

"Dry and open ground throughout Texas." (Coulter). Waysides and

prairies; of no importance; bees gather propolis from resinous heads