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 Flowers Willow Lake TrSue Smith |  Leaf Pioneer ParkSue Smith |  Plant - fall Willow Lake TrSue Smith |  Plant - summer Willow DellsSue Smith |  Plant - summer Pioneer ParkSue Smith |  Seedhead Pioneer ParkSue Smith |
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Origin:
Native
Life Cycle:
Biennial or annual Similar Species: Machaeranthera tanacetifolia
General Desc:
Taprooted annual or possibly biennial under favorable conditions. Stems slender, moderately branched, hairy, may or may not have gland tipped hairs, slightly ash gray.
Identification notes: Annual with slender hairy and glandular herbage. Lower leaves pinnatifid, spine-tipped; upper leaves smaller with toothed margins. Flower head bracts taper to a point on both ends, tips erect, not narrower than their base. Achenes are bristle-tipped.
Height:
5 to 20 inches
Habitat Description: Found on arid mesas, grasslands, creosote bush dominated desert scrub, pine-oak woodlands, roadsides, stream beds.
Plant Communities:
Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Riparian, Disturbed Areas
Elevation: Below 4500 feet
Color:
Purple
Shape:
Daisy or dandelion-like not in clusters
Tubular:
N
Flowering Period:
Mar - Oct
Description:
Purple with yellow centers, purple ray flowers 8 to 16, yellow disc flowers 14 to 40. Below the flower head are 24 to 44 narrow bracts in 3 to 5 series.
Leaf Color:
Grayish-green
Leaf Type:
Simple
Leaf Shape:
Pinnatifid
Leaf Margin:
Lobed
Leaf Attachment:
Alternate
Leaves Clasp:
Y
Hairs:
Leaves and stems
Spines:
Y
Leaf Description:
Lower leaves with 3 to 7 spine-tipped lobes. Upper leaves smaller with toothed margins. Leaves and stems are very hairy and glandular.
Fruit Color: Brown
Fruit Type: Achene
Fruit Notes: Achenes are slender, covered with silky hairs and bear bristles at the top.
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