Weed
woollyleaf bur ragweed
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
ObovateObovate:
Inverted egg shaped with apical end the broadest.
Brown
Slightly pubescentPubescent:
Having hairs.
Two large terminal bristles
Seed type is best described as an acheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. enclosed in an involucreInvolucre:
A number of bracts (often leaf-like) that subtend an inflorescence such as the head in sunflowers.
. Largest of the bursages. Bristles and pubescence mostly on apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
half.
State Noxious Weed: Colorado, Hawaii, Kansas
Not included
Asteraceae
Ambrosia grayi (A. Nelson) Shinners
Franseria tomentosa A. Gray
Gaertneria grayi A. Nelson
Gaertnera tomentosa (A. Gray) Kuntze
