UW Burke Herbarium species comparison

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Agrostis stolonifera

spreading bent
Habit Stoloniferous perennial, also sometimes rhizomatous, the culms erect to decumbent, 5-8 dm. tall.
Leaves

Sheaths open;

ligules truncate to obtuse, 3-6 mm. long, usually lacerate;

blades flat or folded, 4-10 mm. broad.
Flowers

Inflorescence a compressed to somewhat open panicle 5-30 cm. long, usually purplish, bearing spikelets nearly to the base;

spikelets 1-flowered, articulate above the glumes;

glumes subequal, 2-2.5 mm. long, acute;

lemmas 2/3 to 3/4 as long as the glumes, scabrous on the keel, awnless;

palea over 1/2 as long as the lemma;

lodicules 2, 0.4 mm. long.

Agrostis stolonifera
Flowering time June-September
Habitat Wet, disturbed areas that include streambanks, flooded fields, and ditches at low to moderate elevations.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Eurasia
Conservation status Not of concern
Sibling taxa
A. canina, A. capillaris, A. castellana, A. exarata, A. gigantea, A. idahoensis, A. mertensii, A. microphylla, A. ×murbeckii, A. oregonensis, A. pallens, A. scabra, A. variabilis
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Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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