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Trisetum spicatum (L.) K. Richt.
Narrow false oat, Spike trisetum
Poaceae (Grass Family)
Synonym(s): Aira spicata, Trisetum molle, Trisetum montanum, Trisetum montanum var. shearii, Trisetum spicatum ssp. alaskanum, Trisetum spicatum ssp. congdonii, Trisetum spicatum ssp. majus, Trisetum spicatum ssp. molle, Trisetum spicatum ssp. montanum, Trisetum spicatum ssp. pilosiglume, Trisetum spicatum var. alaskanum, Trisetum spicatum var. congdonii, Trisetum spicatum var. maidenii, Trisetum spicatum var. majus, Trisetum spicatum var. molle, Trisetum spicatum var. pilosiglume, Trisetum spicatum var. spicatiforme, Trisetum spicatum var. villosissimum, Trisetum subspicatum, Trisetum triflorum, Trisetum triflorum ssp. molle, Trisetum villosissimum
USDA Symbol: TRSP2
Spike Trisetum is a member of the grass family (family Poaceae). Grasses are herbs, rarely woody, with cylindrical, jointed flowering stems (culms), hollow between the joints, leaves often mostly basal and tiny flowers aggregated into highly modified clusters. This very important family, consisting of about 525 genera and 5000 species, provides much of the food used by humans, as well as fodder for livestock. Grasses occur throughout the world in almost every habitat, with the greatest diversity of species found in the tropical zone, and the greatest abundance in the temperate regions.
Bloom InformationBloom Color: Yellow
, WY Canada: NB
, NS Native Distribution:
Arctic America, s. to PA, NC
mts., n. MI, MN
& mts. to NM
& CA Native Habitat:
Alpine meadows & slopes, descending to lower plains & lakeshores in northern regions
Growing ConditionsWater Use: Medium
Light Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: Low
Soil Description: Moist, gravelly soil.
Conditions Comments: Several varieties have been proposed for this species. The most outstanding is var. molle with densely pubscent foliage.
PropagationDescription: Seed collected from low altitude plants germinated slower that that of high altitude plants, but at higher temperature. Germination of high altitude seed is stimulated by light and stratification.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Record Last Modified: 2007-01-01
Research By: TWC Staff