Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Image Library
Search Images
Inventories
State Floras
Kentucky Flora
Dynamic Tools
Dynamic Checklist
Dynamic Key
Juncus acutiflorus
Ehrh.
Family:
Juncaceae
Sharp-Flower Rush
FNA
Resources
Ralph E. Brooks*;Steven E. Clemants*; in Flora of North America (vol. 22)
Herbs, perennial, rhizomatous, to 8 dm. . Rhizomes 5--6 mm diam., nodes not swollen. Culms erect, terete, 3 mm diam., smooth. Cataphylls 1, straw-colored, apex acute. Leaves: basal 1, cauline 2; auricles 0.5 mm, apex rounded, cartilaginous; blade 7--45 cm x 1--2 mm, terete, not scabrous. Inflorescences terminal panicles of 70--120 heads, 6--10 cm, branches ascending; primary bract erect; heads 3--5(--8)-flowered, obconic, 2--4 mm diam. Flowers: tepals dark reddish brown, lanceolate, apex acuminate to subulate tipte; outer tepals 1.9--2.2 mm; inner tepals 2--2.3 mm; stamens 6, anthers 2 times filament length. Capsules inserted with beak exserted, straw-colored, 1-locular, narrowly ovoid, 2.3--2.4 mm, tapering to subulate tip, valves separating at dehiscence. Seeds narrowly ovoid, 0.5--0.6 mm, not tailed; body clear yellow-brown.
Fruiting fall. Wet woods; 0--10 m; St. Pierre and Miquelon; Nfld. and Labr. (Nfld.); Europe; Asia; Africa..
Open Interactive Map
Click to Display
19 Total Images
This project made possible by
National Science Foundation Award 1410069
Powered by
Symbiota
.