Common Rush
Juncus effusus
Observed in shallow water along upper Sycamore Creek, Washington Park, Gila Co., Arizona, USA. 17 July 2016.
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FLOWERS: Each compact spike holds many small yellow-brown flowers. These spikes are in turn arranged into
clusters at the terminus of the tall stems.
LEAVES: The long leaves wrap tightly round the stems which are circular in cross section; there is no discernable
blade.
PERENNIAL: An herbaceous plant that regrows each year
from submerged rhizomes. Many upright stems form stands at water's edge.
RANGE: Found in wet habitats through much of North America. More than a dozen additional rush
species are possible in wet soils of Arizona.
FRUIT: A single small seed developes for each of the many flowers in each head.
UNARMED. No spines.
Juncaceae -- Rush Family
More Information:
- Southwest Environmental Information Network
- USDA Plant Profile
- Encyclopedia of Life
- Google Images
- Google Scholar Literature Search