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Taiwan Gramineae | Family List | Poaceae

Bromus L., Sp. Pl. 1: 76-78. 1753.

雀麥屬

Bromus catharticus

Credit: CC Hsu, 1975 Taiwan Grasses

Annual or perennial; leaf-sheaths with margins connate for most of their length, usually hairy. Panicle open or contracted, ample or scanty . Spikelets cuneate to ovate; glumes herbaceous; lemmas herbaceous to subcoriaceous sometimes with membranous margins, entire or bidenticulate to bilobed, mucronate to long awned, the awn subapical though sometimes minutely so; stamens (1-)3.

Temerate regions of both hemispheres but mainly in the north.

Species ± 150. Woodland, meadow and ruderal habitats.

LITERATURE
Veldkamp, J. F. 1991. Bromus (Gramineae) in Malesia. Blumea 35: 483-497.


KEY TO THE SPECIES

1 Spikelets strongly laterally compressed; lemmas awnless; lemmas margins not inrolled   Bromus catharticus
+ Spikelets slightly laterally compressed; lemmas with awn; lemmas margins inrolled   (2)
       
2 (1) Lemmas longer than 20 mm; lemmas subcoriaceous; upper glumes subcoriaceous   Bromus rigidus
+ Lemmas shorter than 20 mm; lemmas chartaceous; upper glumes chartaceous    
       
3 Lower glumes 1 -nerved; upper glumes shorter than 10 mm; upper glumes 3- nerved; lemmas with a awn longer than half to nearly as long as lemma; lower glumes sharp at apex   Bromus morrisonensis
+ Lower glumes 3 -nerved; upper glumes longer than 10 mm; upper glumes 5- nerved; lemmas with a short awn less than the 1/2 length of lemma; lower glumes acute at apex.   Bromus formosanus

Lower Taxa


 

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