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 Flower Willow Lake TrSue Smith |  Flower bracts Willow Lake TrSue Smith |  Leaf Willow Lake TrSue Smith |  Plant - summer Willow Lake TrSue Smith |  Young plant - spring Willow Lake TrSue Smith |  Plant - summer Willow Lake TrSue Smith |
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Origin:
Native
Life Cycle:
Annual
General Desc:
Covers large areas, 1 or 2 acres, with its bright yellow flowers. Often branched at base or throughout, moderately stout to stout, not wiry, moderately hairy.
Identification notes: Taprooted annual, bristly stems freely branching. Leaves hairy, once or twice divided. Stem leaves stalkless, appressed. Flowers yellow and radiate at branch tips; hairy, straw-colored at the bases. Flower head bracts in series of 5 to 6, bristle tipped.
Height:
4 to 16 inches
Habitat Description: Dry sites, including rocky to sandy washes, slopes, and roadsides.
Plant Communities:
Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Disturbed Areas
Elevation: 3000 - 7200 feet
Color:
Yellow
Shape:
Daisy or dandelion-like not in clusters
Tubular:
N
Flowering Period:
Mar - Nov
Description:
Yellow ray and disc flowers. Approximately 20 to 30 ray flowers, to 1-1/4 inches wide. Terminal on upper branches. Multiple rows of bracts on the flower heads, outer much shorter than the inner, all with straw colored bases and dark green spots at tips.
Leaf Color:
Grayish-green
Leaf Type:
Simple
Leaf Shape:
Pinnatifid
Leaf Margin:
Toothed
Leaf Attachment:
Alternate
Leaves Clasp:
N
Hairs:
Leaves and stems
Spines:
Y
Leaf Description:
Angled upward with spiny bristle at tip of each tooth. Lowest leaves have a few lobes. To 3/4 inch long and 1/4 inch wide.
Fruit Color: White to reddish-brown
Fruit Type: Achene
Fruit Notes: Achenes are slender, slightly wider at bases and covered with dense short hairs, topped with bristles. There are numerous slender, pale unequal bristles at tip.
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