| |
This group has no
ray florets and disc florets which are very short
Flowerheads are cone-shaped or button-like
|
| |
|
Guide to Identify Presented Species of this group
|
|
FLOWERHEADS CONE-SHAPED OR BUTTON-LIKE
|
Matricaria
discoidea - Pineapple Weed
Annual, 5-40 cm tall, hairless, branching. Roadsides and disturbed areas.
Flowerheads greenish, cone-shaped, 5-10 mm wide, with disk flowers only.
Leaves alternate, 1-3 times pinnately cut into fine, linear segments. |
 |
Rudbeckia
occidentalis - Western Coneflower
Coarse perennial, 50-150 cm tall. Streambanks, woodlands, foothills to montane.
Flowerheads solitary, dark brown, rays lacking, disk flowers
on a raised column.
Leaves alternate, ovate, up to 25
cm long and 15 cm wide, entire or toothed. |
 |
Tanacetum
vulgare - Common Tansy
Plant aromatic, branched, 40-150 cm tall, often in
patches. Disturbed areas.
Flowerheads yellow, 5-10 mm wide, with
disk flowers
only, in large clusters.
Leaves alternate, numerous, fern-like, twice pinnately cut into fine segments. |
 |
|
|
sdf sdfsdfsdf sdfsdfsdfsdf sdf sdfgdfgdfgdffdfg df hdfshsdfhsdfgdfgdfgdsf dfg dfg dfgdfg sddfgdf dsfgg |
|