|
sharpflower rush
|
iris-leaf rush
|
| Herbs, perennial, rhizomatous, to 8 dm. |
Herbs, perennial, rhizomatous, 5–9 dm. |
5–6 mm diam., nodes not swollen. |
2–3 mm diam. |
erect, terete, 3 mm diam., smooth. |
erect, 2–6 mm diam. |
1, straw-colored, apex acute. |
0 or 1–2, straw-colored, apex narrowly acute. |
basal 1, cauline 2; auricles 0.5 mm, apex rounded, cartilaginous; blade 7–45 cm x 1–2 mm, terete, not scabrous. |
basal 1–3, cauline 2–6, straw-colored; auricles absent; blade 10–40 cm x (3–)7–12 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. |
panicles or racemes of 20–50 heads, 2–14 cm, erect or ascending branches; primary bract erect; heads 15–70-flowered, obovoid to globose, 7–11 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 brown or reddish brown, lanceolate, 2.4–3.7 mm, nearly equal, apex acuminate; stamens 6; anthers ½1/2 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. |
slightly exserted, chestnut to dark brown, 1-locular, ellipsoid, 2.4–3.8 mm, apex acuminate, not beaked. |
narrowly ovoid, 0.5–0.6 mm, not tailed; body clear yellow-brown. |
elliptic to obovate, 0.4–0.6 mm, not tailed. |
|
= 40. |
|
|
|
|
| Fruiting fall. |
Fruiting early summer–fall. |
| Wet woods |
Salt marshes, moist areas, ditches, springs, lake and stream shores |
| 0–10 m (0–0 ft) |
500–1600 m (1600–5200 ft) |
|
NF; SPM; Europe; Asia; Africa |
AZ; CA; NM; NV; UT; Mexico (Baja California)
|
|
This species and the next (Juncus ensifolius) are closely related and have been treated as members of a single species (J. xiphioides) by Engelmann. Until a study of the complete subgenus is done, we are hesitant to use a varietal name (J. xiphioides var. triandrus) for the widespread western taxon J. ensifolius. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 22. |
FNA vol. 22. |
| Juncaceae > Juncus > subg. Septati |
Juncaceae > Juncus > subg. Ensifolii |
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. 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 var. auratus, J. xiphioides var. littoralis |
| Ehrhart: in G. F. Hoffmann, Deutschl. Fl. 1: 125. (1791) |
E. Meyer: Synopsis Juncorum 50. (1822) |
| |
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