California Cudweed

Pseudognaphalium californicum

"Pseudognaphalium californicum" is a species of flowering plant in the family Asteraceae. The plant is native to the west coast of North America from Washington to Baja California, where it is a member of the flora of many habitats, including chaparral.
Pseudognaphalium_californicum Kings Canyon National Park, CA. US Geotagged,Pseudognaphalium californicum,Summer,United States

Appearance

"Pseudognaphalium californicum" is an annual or biennial herb growing a branching stem reaching 20 to 80 centimeters in height. Stem branches bear linear to somewhat lance-shaped leaves 2 to 20 centimeters long. The green herbage is glandular and scented. The leaves produce a distinctive citrus aroma.

The inflorescence is a wide cluster of flower heads, each enveloped in an involucre of rows of bright white phyllaries.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderAsterales
FamilyAsteraceae
GenusPseudognaphalium
SpeciesP. californicum