|
Colorado rush
|
blunt-flower rush
|
| Herbs, perennial, cespitose, 3–5 dm. |
Herbs, perennial, rhizomatous, 7–10 dm. |
densely branched. |
3–7 mm diam., nodes not swollen. |
(1–)5–15(–25). |
erect, terete, 2–4 mm diam. |
1–3. |
2–3, straw-colored, apex rounded. |
basal, 2–4; auricles 0.3–0.7 mm, apex usually rounded, scarious to membranaceous; blade flat, 3–15 cm × 0.4–1 mm, margins entire. |
basal 0, cauline 1; auricles 0.5–1.5 mm, apex blunt, cartilaginous; blade 25–35 cm × 1–2 mm. |
3–25-flowered, congested, 1–2.5 × 1–2 cm; primary bract usually exceeding inflorescence. |
terminal panicles of 24–60 heads, 5–10 cm, branches spreading; primary bract erect; heads 15–50-flowered, spheric, 4.5–6 mm diam. |
not secund;: bracteoles 2; tepals dark green to blackish, usually with brownish midstripe, lanceolate to lanceolate-ovate, 3.5–4.3 mm, margins clear; outer and inner series nearly equal; stamens 6, filaments 0.6–0.9 mm, anthers 0.3–0.5 mm; style 0.1 mm. |
tepals light brown, lanceolate to oblong, 2–2.5 mm, nearly equal; stamens 6, anthers longer than filament. |
tan or darker, 3-locular, nearly globose to widely obvoid, 2.5–3.5 × 1.3–1.8 mm, shorter than perianth. |
included with beak slightly exserted, chestnut brown, 3-locular, ovoid, 2.5 mm, apex acute proximal to beak, valves separating at dehiscence, fertile throughout or only proximal to middle. |
yellowish, obovoid to ellipsioid, 0.4–0.5 mm, not tailed. |
not seen. |
= 80. |
|
|
|
|
|
| Flowering and fruiting late spring–summer. |
Fruiting fall. |
| Moist, open grasslands and meadows |
Upper border of salt marsh |
| 700–3400 m (2300–11200 ft) |
0 m (0 ft) |
|
AZ; CA; CO; ID; MT; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK
|
MA |
|
All sheets that I have seen have aborted seeds. Juncus pervetus was thought to be Juncus subnodulosus, a European native (H. Weimarck 1946). It has been shown that this is a distinct species, however (S. Snogerup and B. Snogerup 1996). It would appear that this species is now extinct. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 22. |
FNA vol. 22. |
| Juncaceae > Juncus > subg. Poiophylli |
Juncaceae > Juncus > subg. Septati |
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. 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. 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. exilis |
|
| Coville: Proceedings of the Biological Society of Washington 10: 127. (1896) |
Fernald: Rhodora 19: 17. (1917) |
| |
BC, 
CA, 
OR, 
WA
Flora NW, 
PNW Herbaria
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
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