pensylvanicum, originating in tropical America, grows wild
across the country. It grows to 10-30cm in height, and the whole,
having fine fluff all over, looks gray-white. Leaves measure 1.5-4cm
long, around 1cm wide, spatulate, with round tips with short
processes. Branches appear from axils on the upper parts, setting
some small light brown flower heads in bundles. Involucres measure
4-5mm long in an oval shape. Bloom time: April-September.