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 Leaves Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA) |  Plant University of Arizona Herbarium , Usage Rights: CC BY-NC (Attribution-Non-Commercial) |  Bracts Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA) | | | |
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Origin:
Native
Life Cycle:
Annual
General Desc:
Small flower heads; only ray flowers, no disc flowers; seeds topped with about 18 bristles and 1 awn; bristles detach easily, while the awn remains; when flowers bloom leaves are shriveled or gone.
Identification notes: Annual; slender smooth stems branching from base; leaves mostly basal, diminishing on stem, lined with narrow lobes; small flower heads branched and spreading; pale yellow or white ray flowers; 15-ribbed achenes (fruit) with tuft of long bristles.
Height:
1-1/2 feet
Habitat Description: Found along streams, in cleared areas, burns, slides, chaparral, and creosote bush shrub.
Plant Communities:
Desert Scrub, Interior Chaparral, Semidesert Grasslands, Riparian, Disturbed Areas
Elevation: 2500 - 4500 feet
Color:
Pale yellow, white
Shape:
Daisy or dandelion-like in elongated clusters
Tubular:
N
Flowering Period:
Mar - Jun
Description:
Flowers on branches of main stem with many small, fanned out heads; pale yellow or white ray flowers; outer rays 1/16 inch; bracts 1/4 inch high; 5 to 12 small bracts around sepals; hairless.
Leaf Color:
Green
Leaf Type:
Simple
Leaf Shape:
Narrow
Leaf Margin:
Lobed
Leaf Attachment:
Alternate
Leaves Clasp:
N
Hairs:
No
Spines:
N
Leaf Description:
1 to 5 slender stems; branching from the base; leafy, with milky sap; leaves mostly basal; to 4 inches long; upper leaves lance-shaped; pinnately lobed; lobes to 1/8 inch; margins rectangular; faces hairless; alternate.
Fruit Type: Achene
Fruit Notes: Oblong-linear, ribbed, crowned with a ring of minute teeth; about 1/16 inch; topped with soft bristles; 1 or 2 of them stiffer.
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