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 Flower heads Del Rio SpringsBob Gessner |  Leaves Del Rio SpringsBob Gessner |  Plant - fall Del Rio SpringsBob Gessner | | | |
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Origin:
Native
Life Cycle:
Annual Similar Species: Bidens sp.
General Desc:
A golden yellow herbaceous annual, sometimes seeded into floating mats of other vegatation or may also form mats that float.
Identification notes: Wedge-shaped akenes distinguish this species from other Bidens . This species is found in meadows, marshes, and
margins of pools, streams, estuaries which also distinguishes it from other Bidens sp.
Height:
1 to 6 feet
Habitat Description: Prefers cool, moist areas. Scattered in wet areas, ponds, streams, meadows, marshes, and margins of pools, streams, estuaries.
Plant Communities:
Riparian
Elevation: Below 9100 feet
Color:
Yellow
Shape:
Daisy or dandelion-like in round clusters
Tubular:
N
Flowering Period:
Aug - Oct
Description:
The inflorescence bears one or more flower heads which bend down as they become heavy with fruit after flowering. Each head has a
center of yellow disc florets and a fringe of 7 or 8 yellow ray florets, each about an inch long.
Leaf Color:
Green
Leaf Type:
Simple
Leaf Shape:
Narrow
Leaf Margin:
Toothed
Leaf Attachment:
Opposite
Leaves Clasp:
Y
Hairs:
Leaves and stems
Spines:
N
Leaf Description:
The leaves are narrow, lance-shaped, with serrated margins and pointed tips. Basal stems are cylindric, upper stems hexagonal.
Fruit Color: brown
Fruit Type: Achene
Fruit Notes: The fruit is a sharply barbed achene.
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