Common · Nature
Bromus catharticus
Species of plant
Bromus catharticus is a species of brome grass known by the common names rescue grass (America), prairie grass (New Zealand), and Schrader's bromegrass in English, and cebadilla criolla and cebadilla in Spanish. It is the most common and most well-known of several species in the Bromus catharticus complex within the Bromus section Ceratochloa, all of which are hexaploids with the chromosome count 2n=42.
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It is native to South America but it can be found in other places, including Europe, Australia and North America, as an introduced species. Bromus catharticus is a coarse winter annual or biennial grass, growing 0.2–1 m (7.9 in – 3 ft 3.4 in) in height. The culms of the grass are glabrous and 2–4 mm (0.079–0.157 in) thick. The sheaths are densely hairy. The grass lacks auricles and the glabrous ligule is 1–4 mm (0.039–0.157 in) long. The leaf blades are 4–30 cm (1.6–11.8 in) long and 3–10 mm (0.12–0.39 in) wide and are glabrous or pubescent. The erect or nodding panicles are 9–28 cm (3.5–11.0 in) long. The upper spikelets are erect and the lower spikelets are nodding or drooping.
Text: Wikipédia, CC BY-SA 4.0. · Image: Forest & Kim Starr (CC BY 3.0) ·