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Published In: Neues Journal für die Botanik 1(3): 134. 1806. (Neues J. Bot.) Name publication detail

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. Phalaris brachystachys Link (shortspike canary grass)

Pl. 135 g, h; Map 546

Plants annual, forming tufts. Flowering stems 25–90 cm long. Leaf sheaths with the ligule 2–7 mm long. Leaf blades 4–25 cm long, 3–11 mm wide. Inflorescences 1.5–4.0 cm long, 15–20 mm wide, appearing as dense, ovoid, uninterrupted spikes, the branches very short and inconspicuous. Glumes (4.0–)6.5–8.5 mm long, glabrous or hairy, the midnerve (keel) relatively broadly winged toward the tip, the wing up to 1 mm wide at its broadest point. Sterile lemmas 0.6–1.2 mm long, oblong‑ovate, swollen and somewhat fleshy, glabrous or with a tuft of short hairs at the base. Fertile lemma 4.5–5.5 mm long, ovate, hairy. Anthers 2.5–3.5 mm long. Fruits 3.5–4.0 mm long, elliptic to oblong‑ovate in outline, light brown. 2n=12, 14. May–July.

Introduced, known only from a single historical collection from Laclede County (native of Europe, Africa, Asia; introduced sporadically in the western U.S.). Margin of a pond.

This species resembles P. canariensis closely. Anderson (1961) first noted its presence in Missouri.



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