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Adenophyllum porophylloides - San Felipe dogweed

Scientific Family
Asteraceae
Synonyms
Dyssodia porophylloides
Other common names
San Felipe foetid marigold
San Felipe dyssodia
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Perennial
Height
To 2 feet
Riparian
No
A straggly, much-branching bush that gives off an unpleasant odor when crushed.
Thick, woody base, strong disagreeable odor, lower leaves opposite, upper alternate, stems hairless, leaves 3 to 5-parted into narrow lobes, phyllaries in 2 series, translucent oil glands, pappus of awns.

Habitat

Mesas, washes, and dry rocky slopes.
Plant Community
Interior Chaparral
Grasslands
Desert Scrub
Low elevation
500
High elevation
3000

Flower Characteristics

The flower head is to 1/2 inch wide and 1 inch long. Flower heads consist of 8 to 12 ray flowers and many disc flowers. Bracts have dark red glands.
Flower color
Yellowish-orange
Flower shape
Daisy or dandelion-like
Tubular
No
First bloom month
March
Last bloom month
October
Flower clusters
None

Leaf and Stem Characteristics

Leaves are opposite below and alternate above. They are deeply divided into 3 or 5 narrow lobes to 1 inch long and 7/8 inches wide.
Leaf type
Compound
Leaf color
Dark green
Leaf shape
Narrow
Leaf margin
Toothed
Leaf attachment
Alternate & Opposite
Leaves clasp
No
Leaf hairs
None
Spines
No

Fruit and Seed Characteristics

3/16 inch long, ribbed and sparsely hairy. Attached are 8 to 12 scales, to 5/16 inches long, each dissected into 7 to 11 bristles.
Fruit type
Achene