Cenchrus spinifex (weed)
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Cenchrus spinifex inflorescence (click on image to enlarge it)
Author(s): Joseph M. DiTomaso, University of California - Davis
Source: IPM Images
Author(s): Joseph M. DiTomaso, University of California - Davis
Source: IPM Images
Cenchrus spinifex (weed) Cav. - (coastal sandbur)
This weed is native to South America and Africa, but is invasive in other regions. For example it is a problem in North America, Australia and parts of Asia where it affects grassland and cereals. It forms two types of seeds that are referred to as "small seeds" and "big seeds".
| Vernacular names | |
|---|---|
| • English: | coastal sandbur spiny burr grass |
| • Français: | cenchrus douteux |
Synonyms:
Cenchrus incertus
Cenchrus pauciflorus
- Other images of Cenchrus spinifex (weed) (IPM Images - click to enlarge)
collar and sheath
disseminule (cupule of fused bristles surrounding spikelets)
spikelet with the spiny cupule removed
floret in dorsal view. Note the U-shaped ridge at the base of the lemma
caryopsis in dorsal (left) and ventral (right) views, note the relatively large embryo
