Wildflowers, Plants and Ferns, Pacific Northwest
Pineapple Weed is a very common annual broad leaf plant. It is found all over North America and even on all of Greenland. Pineapple weed inhabits agricultural land, turf, and other disturbed areas. When crushed, the leaves and flower heads smell similar to pineapple.
You can find Pineapple Weed growing in fields, orchards, nurseries, pastures, sand bars, riverbanks, roadsides, gardens, turf, landscaped areas, and other disturbed places.
The seed leaves are bright green, narrow, thick and fleshy, pointed or rounded at the tip, hairless, and are about 2 to 12 mm long and 1 mm wide.
Plants can grow up to 1 m tall but generally are found about 10 to 25 cm.
The crushed leaves of pineapple weed give off a sweet scent similar to pineapple and can be used to freshen up a room, just crush and place in a cloth bag and hang. Flowering takes place from May through August. Flower heads are found at the ends of stems, are egg shaped and are composed of densely packed, tiny, non showy, yellowish green flowers.
At maturity flower heads shatter releasing tiny, lance shaped, yellow, brown, or gray fruit that range from 1 to 2 mm long. Each fruit contains one seed