Pineapple Weed Seeds

ILGM

Buy Cannabis Seeds Online

Pineapple Weed Seeds Pineapple Weed Matricaria discoidea Aster family (Asteraceae) Description: This annual plant is about 3-12″ tall, branching frequently and having the appearance Pineappleweed (Matricaria matricarioides) reproduces from seeds. The first pair of leaves are opposite, bright green and have few lobes. The following leaves have an alternate arrangement and are divided into fine, linear lobes. Young plants form a rosett Pineapple Weed This is an annual weed, reproducing by seeds. The stems are erect, up to 40 cm tall, branched, hairless, and smooth. The leaves are alternate, hairless, very finely divided, and

Pineapple Weed Seeds

Pineapple Weed
Matricaria discoidea
Aster family (Asteraceae)

Description: This annual plant is about 3-12″ tall, branching frequently and having the appearance of a miniature bush. Fern-like leaves up to 2″ long and �” across alternate along the hairless stems. These simple, double, or triple compound leaves are pinnately divided into linear lobes. From the axils of the upper leaves, there develops flowerheads on stalks about �–1�” long. The flowerhead of each stalk is about 1/3″ across, and consists of numerous greenish yellow disk florets and no ray florets. Each disk floret has 4 tiny lobes at its apex. The base of the flowerhead has several overlapping green bracts that are lanceolate or ovate with papery upper margins. The top of the flowerhead is shaped like a dome or blunt cone. Both the foliage and flowerheads have a pineapple-like odor when they are bruised or crushed. The blooming period occurs during the summer and lasts about 1-2 months. Each disk floret is replaced by an oblong achene that is broader at the top than the bottom. The achenes are without awns or tufts of hairs. The root system consists of a branching taproot. This plant spreads by reseeding itself.

Cultivation: The preference is full sun, mesic conditions, and gravelly or compacted soil. Competition from taller plants is not tolerated for very long.

Range & Habitat: Pineapple Weed is a common plant in central and northern Illinois, but it is somewhat less common in the southern areas of the state (see Distribution Map). This plant is adventive from the Pacific Northwest. In addition to eastern North America, Pineapple Weed has since spread to northern and western Europe, where it is not native. Habitats include stony slopes of pastures, barnyards, edges of driveways and sidewalks, gravelly areas along railroads and roads, and sunny waste areas that are rocky or gravelly. Disturbed areas are strongly preferred.

See also  Weed Seed For Sale In Jamaica

Faunal Associations: The flowerheads attract flower flies (Syrphidae) and are probably pollinated by them. Little is known about this plant’s relationship to birds and herbivorous mammals in the NE or Midwest. Cattle reportedly make little use of it as a food source. It is possible that the seeds or flowerheads stick to the tires of motor vehicles and for this reason Pineapple Weed often occurs along roadsides and driveways.

Photographic Location: Along a gravelly slope near a driveway in Urbana, Illinois.

Comments: This odd-looking little plant is closely related to the mayweeds, chamomiles, and other weedy daisies that have been introduced into North America from abroad. They share the same kind of highly dissected foliage. However, Pineapple Weed lacks white ray florets in its flowerheads, unlike the others, and it is less showy in appearance as a result. Another scientific name for this species is Matricaria matricarioides. The common name refers to the scent of the foliage and flowerheads, and possibly the appearance of the latter.

Pineappleweed

Pineappleweed (Matricaria matricarioides) reproduces from seeds. The first pair of leaves are opposite, bright green and have few lobes. The following leaves have an alternate arrangement and are divided into fine, linear lobes. Young plants form a rosette before mature growth begins. Mature plants have elongate stems that are smooth and grow laterally or vertically. They can reach a height of over 12 inches.

The leaves have a distinct odor that resembles pineapple. They are alternate and finely divided, which gives the plant a “soft” appearance. Flowers are produced throughout most of the growing season from April through September. The flower heads are rounded and greenish yellow. There are no petals. The flowers and leaves are edible and a tea can also be made from the flowers.

See also  Buy Marijuana Seeds In Nevada

Pineappleweed grows in a variety of locations including turf areas, particularly poorly maintained locations, landscape beds, or nursery fields. It has a shallow taproot, but also a fibrous root system. If the root system isn’t too extensive, plants can be had removed. This would be particularly beneficial before they set seeds.

Pineapple Weed

This is an annual weed, reproducing by seeds. The stems are erect, up to 40 cm tall, branched, hairless, and smooth. The leaves are alternate, hairless, very finely divided, and pineapple scented when crushed. The flowers are very small, grouped into head, and yellowish-green in colour. Flower heads are dome-shaped and resemble miniature pineapples. The tubular florets are surrounded by a series of involucral bracts which have broad whitish translucent edges. The seeds are olive or brown in colour, 1.0 x 0.3 mm in size, and one per flower.

Scouting Techniques

Take a minimum of 20 weed counts across the field. Check roadsides, waste areas, yards, and disturbed ground for patches of this weed. May occur in high traffic areas such as walking paths.

How useful was this post?

Click on a star to rate it!

Average rating 4 / 5. Vote count: 1

No votes so far! Be the first to rate this post.