Juncus roemerianus
Black Needlerush
NATIVE
Click image to enlarge
Dark green, smooth, needle-like leaves, round in cross section
Credit: Kristie Gianopulos. Used with permission.
FIELD ID CHARACTERISTICS:
Identification of Juncus to species requires examination of mature seeds and fruits. All Juncus have 6 sepal-like structures surrounding each fruit.
Description: Dark green rush, forming dense clumps in brackish marshes. Upright, hollow, smooth, needle-like stems with very sharp tips. Grows 1 to 1.5 m tall.
Leaves: Leaves cylindrical, smooth, and stiff with sharp points at the tip. Dark green, sometimes appearing black from a distance. Turn grayish in winter.
Flowers/Fruit: Inflorescence is panicle of numerous small flowers in bunches connected to stalks; emerges from the side of the stem. Flowers and fruits May to October.
Habit and Range: Coastal brackish and fresh-tidal marshes, often in extensive colonies.
Typical Max Plant Height (m):
1
Leaf Arrangement:
Basal
Leaf Division:
Simple
Leaf Margin:
Entire
Leaf Shape:
Linear
Inflorescence Color:
Green,
Brown,
Yellow
Fruit Color:
Brown
Lifespan:
Perennial
Group:
Monocot
Family:
Juncaceae / Rush
Ecoregions Found In:
Outer Coast
