Stellaria longifolia (Long-leaf Starwort)

Plant Info
Also known as: Long-leaved Stitchwort
Genus:Stellaria
Family:Caryophyllaceae (Pink)
Life cycle:perennial
Origin:native
Habitat:part shade, sun; wet meadows, moist woods, swamps, along shores
Bloom season:May - July
Plant height:4 to 20 inches
Wetland Indicator Status:GP: FACW MW: FACW NCNE: FACW
MN county distribution (click map to enlarge):Minnesota county distribution map
National distribution (click map to enlarge):National distribution map

Pick an image for a larger view. See the glossary for icon descriptions.

Detailed Information

Flower: Flower shape: 5-petals Cluster type: panicle

[photo of flowers] Branching cluster of stalked flowers at the top of the plant, with 1 to a few flowers on a branch. Flowers are ¼ to 1/3 inch across with 5 white petals that are deeply divided to look like 10. The 5 narrow star-like green sepals behind the petals are as long as or shorter than the petals and have 3 obscure veins. 5 to 10 stamens surround the center; the tip color may be red, yellow or brown, changing color as the plant matures. Flower stalks are 1/8 to 1¼ inch long, slender, straight to curved, smooth or rough textured. At the base of the stalk is a pair of small, papery bracts less than ¼ inch long.

Leaves and stem: Leaf attachment: opposite Leaf type: simple

[photo of leaves] Leaves are very narrow, linear to elliptic, ½ to 2 inches long and less than 1/8 inch wide, toothless, hairless, pointed at the tip, stalkless with a prominent center vein. Leaves are widest at or above the middle, but that may be very subtle and not easily distinguished. Attachment is opposite. Stems are branched, slender, square, hairless but often rough along the angles, and weak, causing the plant to be less erect and more sprawling across surrounding vegetation.

Fruit: Fruit type: capsule/pod

[photo of fruit] Fruit is an oval to cone-shaped capsule up to ¼ inch long, blackish purple or straw colored. Inside are tiny brown kidney-shaped seeds.

Notes:

Long-leaf Starwort tends to grow in clumps; its weak stems and narrow leaves usually end up looking like a tangled mess in the surrounding vegetation. Most similar is the weedy Lesser Stitchwort (Stellaria graminea), which has leaves that are proportionately broader and typically (not always) widest below the middle near the base, sepals that are more distinctly 3-veined, usually has many more flowers in the cluster, smooth along the stem angles, and typically found on roadsides, trail edges, degraded fields and other disturbed soils.

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More photos

Photos by K. Chayka taken in Ramsey County. Photos courtesy Peter M. Dziuk taken in Anoka County.

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by: Lou - Moose Lake, MN
on: 2012-06-05 13:49:15

I found these deep in the forest at the back of our land and the County land. They are lovely.

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