|
sharpflower rush
|
jointed rush, knotted rish, knotted rush, tuberous rush
|
| Herbs, perennial, rhizomatous, to 8 dm. |
Herbs, perennial, rhizomatous, 0.4–5.5(–7) dm. |
5–6 mm diam., nodes not swollen. |
with swollen nodes, 1 mm diam. |
erect, terete, 3 mm diam., smooth. |
erect, terete, 1–3 mm diam., smooth. |
1, straw-colored, apex acute. |
0 or 1–2., pink to gray, apex acute. |
basal 1, cauline 2; auricles 0.5 mm, apex rounded, cartilaginous; blade 7–45 cm x 1–2 mm, terete, not scabrous. |
basal 1, cauline 2–4, green to pink; auricles 0.5–1.7 mm, apex rounded, membranaceous to cartilaginous; blade terete, 6–30 cm × 0.5–1.5 mm. |
terminal panicles of 70–120 heads, 6–10 cm, branches ascending; primary bract erect; heads 3–5(–8)-flowered, obconic, 2–4 mm diam. |
terminal racemes of 3–15 heads, 0.6–6 cm, branches ascending to erect; primary bract erect; heads 6–30-flowered, spheric, 6–10(–12) mm diam. |
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. |
tepals green to light brown, lance-subulate, 2.4–4.1 mm, nearly equal, apex acuminate; stamens 3 or 6, anthers 1/2 to equal filament length. |
inserted with beak exserted, straw-colored, 1-locular, narrowly ovoid, 2.3–2.4 mm, tapering to subulate tip, valves separating at dehiscence. |
exserted, chestnut brown, 1-locular, lance-subulate, 3.2–5 mm, apex tapering, valves separating at dehiscence, fertile throughout or only proximal to middle. |
narrowly ovoid, 0.5–0.6 mm, not tailed; body clear yellow-brown. |
oblong, ellipsoid, or obovoid, 0.4–0.5 mm, not tailed. |
|
= 40. |
|
|
|
|
| Fruiting fall. |
Fruiting early summer–fall. |
| Wet woods |
Sandy and muddy shores of lakes, streams, rivers, and estuaries (both freshwater and brackish), swamps, fens, salt marshes, and wet fields, often calcareous |
| 0–10 m (0–0 ft) |
0–2200 m (0–7200 ft) |
|
NF; SPM; Europe; Asia; Africa |
AK; AZ; CA; CO; CT; DE; IA; ID; IL; IN; KS; MA; MD; ME; MI; MN; MO; MT; ND; NE; NH; NJ; NM; NV; NY; OH; OK; PA; RI; SD; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NL; NS; NT; ON; PE; QC; SK; YT; Mexico (s to Puebla)
|
|
The Texas populations and some of the northern Mexican populations consistantly have 3 stamens. These populations have been separated as Juncus nodosus var. meridionalis. Plants with 3 stamens are found elsewhere, however, and other significant characters do not appear to separate these populations. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 22. |
FNA vol. 22. |
| Juncaceae > Juncus > subg. Septati |
Juncaceae > Juncus > subg. Septati |
J. acuminatus, J. acutus, 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 |
J. acuminatus, J. acutiflorus, J. acutus, 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. 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 |
|
J. nodosus var. meridionalis, J. rostkovii |
| Ehrhart: in G. F. Hoffmann, Deutschl. Fl. 1: 125. (1791) |
Linnaeus: Sp. Pl., ed. 2 1: 466. (1762) |
| - Local floras:
 BC,  CA,  WA
- Local Web sites: CalFlora, CalPhotos,
 Flora NW,  Go Botany,  IL Wildflowers,  KS Wildflowers,  MD Biodiversity,  MI Flora,  MN Wildflowers,  MO Plants,  PNW Herbaria
 WildflowerSearch iNaturalist (observations) USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
|
