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sharp rush, spiny rush
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rush family
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Herbs, perennial, occasionally annual, usually rhizomatous, orsometimes cespitose. |
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round or flat. |
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mostly basal; sheath margins fused or overlapping, often with 2 earlike extensions (auricles) at blade junction; blade flat or round, glabrous or margins hairy. |
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of headlike clusters or single flowers variously arranged; bracts subtending inflorescence 1 or more2, mostly leaflike; bracts subtending inflorescence branches 1–2, reduced; bracteoles subtending solitary flower 0–2, translucent, reduced. |
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usually bisexual, radially symmetric; sepals and petals similar, persistent, green to brown or purplish black; stamens usually 3 or 6; anthers persistent, linear; pistils 1; ovaries superior, locules 1 or 3, placentas 1 and basal or 3 and axile or parietal; stigmas generally longer than styles. |
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capsules, loculicidal. |
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3–many, often with white appendages on 1 or both ends. |
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AZ; CA; NV; South America; Mexico (Baja Calif); South Africa; Atlantic Islands
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Arctic and temperate regions; tropical mountains |
Subspecies 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genera 9, species ca. 350 (2 genera, 1108 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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1. Leaves glabrous, sheaths open; fruits 1- or 3-chambered; seeds many | Juncus |
1. Leaves generally with hairy margins; fruits 1-chambered; seeds 3 | Luzula |
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| FNA vol. 22, p. 237. |
FNA vol. 22, p. 211. Authors: Ralph E. Brooks, Steven E. Clemants. |
| Juncaceae > Juncus > subg. Juncus |
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J. acuminatus, J. acutiflorus, J. alpinoarticulatus, J. anthelatus, J. arcticus, J. articulatus, J. biglumis, J. bolanderi, J. brachycarpus, J. brachycephalus, J. brachyphyllus, J. brevicaudatus, J. bryoides, J. bufonius, J. bulbosus, J. caesariensis, J. canadensis, J. capillaris, J. capitatus, J. castaneus, J. chlorocephalus, J. compressus, J. confusus, J. cooperi, J. coriaceus, J. covillei, J. debilis, J. dichotomus, J. diffusissimus, J. drummondii, J. dubius, J. dudleyi, J. effusus, J. elliottii, J. ensifolius, J. falcatus, J. filiformis, J. filipendulus, J. georgianus, J. gerardii, J. greenei, J. gymnocarpus, J. hallii, J. hemiendytus, J. howellii, J. inflexus, J. interior, J. kelloggii, J. leiospermus, J. lesueurii, J. longistylis, J. luciensis, J. macrandrus, J. macrophyllus, J. marginatus, J. maritimus, J. megacephalus, J. mertensianus, J. militaris, J. nevadensis, J. nodatus, J. nodosus, J. occidentalis, J. orthophyllus, J. oxymeris, J. parryi, J. patens, J. pelocarpus, J. pervetus, J. phaeocephalus, J. polycephalus, J. regelii, J. repens, J. roemerianus, J. scirpoides, J. secundus, J. squarrosus, J. stygius, J. subcaudatus, J. subtilis, J. supiniformis, J. tenuis, J. texanus, J. textilis, J. tiehmii, J. torreyi, J. trifidus, J. triformis, J. triglumis, J. trigonocarpus, J. uncialis, J. validus, J. vaseyi, J. xiphioides |
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| Linnaeus: Sp. Pl. 1: 325. (1753) |
A. L. Jussieu |
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USDA Plants Database
CA, 
OR
Flora NW, 
PNW Herbaria
WildflowerSearch
iNaturalist (observations)
