OregonFlora species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Juncus acuminatus

knotty-leaf rush, sharp-fruited rush, tapered rush
Habit Plants perennial, 14–100 cm tall, cespitose.
Leaves

round; hollow, septate;

auricles 1–1.5 mm.
Inflorescences

open, cymose; (2)5–50 clusters or head-like clusters; clusters usually 5–15(50)-flowered.
Flowers

tepals 6, green, red or light brown;

stamens 3;

filaments 0.5–0.6 mm;

anthers 0.5–0.9 mm;

styles 0.2–0.3 mm.
Capsules

usually shorter than or equaling tepals, light brown to red, 1-chambered.
Seeds

ellipsoid to ovoid, 0.3–0.5 × 0.15–0.2 mm, apiculate.
2n

=40.

Juncus acuminatus
Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Shores, springs, wet meadows, peatlands, ditches. 0–1300 m. BW, Casc, CR, Est, Owy, Sisk, WV. CA, ID, WA; throughout North America, South America; New Zealand. Native.
Source Flora of Oregon, volume 1, page 271
Peter Zika
Sibling taxa
J. anthelatus, J. articulatus, J. balticus, J. bolanderi, J. brevicaudatus, J. breweri, J. bryoides, J. bufonius, J. bulbosus, J. canadensis, J. capillaris, J. capitatus, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. ensifolius x Juncus nevadensis, J. exiguus, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. lescurii, J. longistylis, J. marginatus, J. mertensianus, J. mexicanus, J. nevadensis, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. planifolius, J. ranarius, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. triglumis, J. trilocularis, J. uncialis
Web links 
Unless otherwise noted, all data comes from OregonFlora.



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in OregonFlora yet, or it's listed under a synonym.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers