Flora of North America species comparison

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Juncus chlorocephalus

green head rush
Habit Herbs, perennial, cespitose, 2–4.5 dm.
Culms

erect, terete, 1–3 mm diam., smooth.
Cataphylls

1, straw-colored or maroon, apex acute.
Leaves

basal 1–2, cauline 2–3;

auricles 2–3.5 mm, apex rounded, scarious;

blade terete, 2–16 cm × 1–2 mm.
Inflorescences

single heads (rarely cluster of 2–3 heads), 0.5–2 cm;

primary bract erect;

heads 15–25-flowered, spheric, 11–14 mm diam.
Flowers

tepals light green to light pink or white, lanceolate, 3.1–4.2 mm, apex obtuse;

stamens 6, anthers 2–3 times filament length.
Capsules

included, straw-colored, 1-locular, broadly obovoid to ovoid, 2.2–2.5 mm, apex obtuse, valves separating at dehiscence, fertile throughout or only proximal to middle.
Seeds

oblong, 0.5 mm, not tailed;

body clear yellow-brown.

Juncus chlorocephalus
Phenology Fruiting mid summer–fall.
Habitat Sandbars, meadows, damp soil in rock outcrops, and talus
Elevation 1400–3000 m (4600–9800 ft)
Distribution
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22.
Parent taxa Juncaceae > Juncus > subg. Septati
Sibling taxa
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. 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
Name authority Engelmann
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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