Poaceae
IUCN
NCBI
EOL Text
Leaves resist crosswise tearing: grasses
The leaves of grasses resist crosswise tearing due to their composite character.
"Equally impressive is the composite character and consequent resistance to crack propagation of the leaves of grasses, also investigated by Vincent (1982). If a grass leaf is slit or notched it does tear more easily, but only (and fairly precisely) in proportion to its reduced cross section--there's just no sign of any significant stress concentration. Do your worst to a grass leaf--it just doesn't go along with attempts to tear it crosswise." (Vogel 2003:340)
Learn more about this functional adaptation.
- Steven Vogel. 2003. Comparative Biomechanics: Life's Physical World. Princeton: Princeton University Press. 580 p.
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | (c) 2008-2009 The Biomimicry Institute |
| Source | http://www.asknature.org/strategy/bf49fa9c75f567967bc5fc1b24d081e7 |
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
Nile and Mediterranean regions, Egyptian desert, and Sinai.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
| Source | http://lifedesk.bibalex.org/ba/pages/3174 |
The chromosomal number of Hordeum vulgare var. coeleste is 2n = 14 (Ramesh and Sharma, 1994; Ding and Song, 1996; Zhang and Yandua, 1996).
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Wen, Jun, Wen, Jun, Plants of Tibet |
| Source | http://plantsoftibet.lifedesks.org/pages/18564 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:18892
Specimens with Sequences:24722
Specimens with Barcodes:17034
Species:4350
Species With Barcodes:4102
Public Records:10703
Public Species:3182
Public BINs:0
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
Cultivated throughout temperate regions of the world.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
| Source | http://lifedesk.bibalex.org/ba/pages/3174 |
The following is a representative barcode sequence, the centroid of all available sequences for this species.
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 7
Species With Barcodes: 1
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 5
Species With Barcodes: 1