UW Burke Herbarium species comparison

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Juncus acutus

Juncus bolanderi

Bolander's rush
Habit Perennial, the stems 4-8 dm. tall, closely spaced on stout rhizomes.
Leaves

Leaves alternate, 2-4 per stem, the upper ones with long, terete blades with prominent partitions;

leaf bases sheathing, with rounded auricles 2-4 mm. long.
Flowers

Heads 3-9, many-flowered, 8-12 mm. broad, assembled into 1-3 clusters 1-2 cm. broad;

perianth tawny to deep brown, the 6 segments subequal, narrowly lanceolate and sharp-pointed;

stamens 3.
Fruits

Capsule about equal the perianth, cylindric, narrowed to a short beak.

Juncus acutus

Juncus bolanderi
Flowering time May-August
Habitat Marshes and river bottoms from tidelands to the lower mountains.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring west of the Cascades crest in Washington; southern British Columbia to coastal California.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Sibling taxa
J. acuminatus, J. alpinoarticulatus, J. anthelatus, J. articulatus, J. balticus, J. bolanderi, J. brachycarpus, J. brevicaudatus, J. breweri, J. bufonius, J. bulbosus, J. canadensis, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. longistylis, J. mertensianus, J. nevadensis, J. nodosus, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pylaei, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. trilocularis, J. uncialis, J. vaseyi
J. acuminatus, J. alpinoarticulatus, J. anthelatus, J. articulatus, J. balticus, J. brachycarpus, J. brevicaudatus, J. breweri, J. bufonius, J. bulbosus, J. canadensis, J. compressus, J. confusus, J. conglomeratus, J. covillei, J. diffusissimus, J. drummondii, J. dudleyi, J. effusus, J. ensifolius, J. falcatus, J. filiformis, J. gerardi, J. hemiendytus, J. hesperius, J. howellii, J. inflexus, J. interior, J. kelloggii, J. laccatus, J. longistylis, J. mertensianus, J. nevadensis, J. nodosus, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pylaei, J. regelii, J. saximontanus, J. supiniformis, J. tenuis, J. tiehmii, J. torreyi, J. trilocularis, J. uncialis, J. vaseyi
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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