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Published In: Essai d'une Nouvelle Agrostographie 31, 151. 1812. (Ess. Agrostogr.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 7/9/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Introduced


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2. Apera spica‑venti (L.) P. Beauv. (loose silky bent)

Pl. 132 a, b; Map 536

Agrostis spica‑venti L.

Flowering stems 20–60 cm long. Leaf sheaths with the ligule 2–5 mm long. Leaf blades 5–15(–20) cm long, 3–10 mm wide, the margins usually flat. Inflorescences 8–25 cm long, relatively open, with loosely ascending to spreading branches at maturity. Lower glume 2.0–2.9 mm long. Upper glume 2.4–3.2 mm long. Lemma 2–3 mm long. Anthers 1.2–2.0 mm long. 2n=14. May–July.

Introduced, uncommon, known thus far only from Jackson and Macon Counties and St. Louis (native of Europe, Asia; introduced sporadically in the northeastern U.S. and adjacent Canada west to Michigan and Missouri). Railroads, pastures, and disturbed, grassy areas.



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