UW Burke Herbarium species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Paspalum distichum

knotgrass, Thompsongrass
Habit Strongly stoloniferous perennial, the culms upright, 4-10 dm. tall, the nodes strongly pubescent.
Leaves

Sheaths open, long-hairy; articulation below the glumes;

ligules 1-1.5 mm. long;

blades 3-8 mm. broad, the margins slightly thickened.
Flowers

Inflorescence a pair of terminal spikes 2-7 cm. long;

spikelets 2-flowered, 3-3.5 mm. long, flattened, attached in two rows on one side of a broadened rachis; first glume lacking, or lanceolate and 1.5 mm. long; second glume 3-nerved, about equal to the lower, 1-nerved lemma, which is sterile and glabrous; fertile upper lemma and palea hardened, slightly shorter than the sterile lemma;

stamens 3;

anthers and stigmas purple.

Paspalum distichum
Flowering time August-October
Habitat Along ditches and streams where the soil is moist much of the season.
Distribution
Occurring chiefly along the lower Columbia River corridor in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in UW Burke Herbarium yet, or it's listed under a synonym.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers