Fabaceae Lindl.
EOL Text
Hydration increases internal pressure: legumes
The seeds of legumes can generate tremendous internal pressures by absorbing large amounts of water.
"If you take some dry legume seeds and immerse them in water they swell up. If they're put in a closed chamber into which water can pass but out of which they can't squeeze or ooze, then their swelling will push outward on the chamber with surprising force…The affinity of many polysaccharides and proteins for water is extreme--the resulting pressures may reach thousands of atmospheres. (Salisbury and Ross [1969] give references to experiments and calculations.) Wetting of a small quantity of dry seeds accidentally left underneath can lead to the fracture of concrete pavement." (Vogel 2003:443-444)
Learn more about this functional adaptation.
- Steven Vogel. 2003. Comparative Biomechanics: Life's Physical World. Princeton: Princeton University Press. 580 p.
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| Rights holder/Author | (c) 2008-2009 The Biomimicry Institute |
| Source | http://www.asknature.org/strategy/251225076d2b97eef3c95a0f5e531536 |
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Trees or shrubs (in ours). Leaves alternate, 2-pinnate or (in some introduced species) modified to phyllodes which look like simple leaves. Inflorescences usually spikes, racemes or heads of small, actinomorphic (3-)5(-6)-merous flowers. Sepals usually united to form a calyx. Petals valvate in bud, free, or united below into a tube. Stamens 4-10, as many as or twice as many as the petals, or numerous. Pods and seeds various. Seeds generally marked with an areole.
Trees or shrubs, less often climbers or herbs. Leaves usually 1-pinnate, less often simple or 2-pinnate. Inflorescences usually of spikes or panicles of racemes, rarely of spikes or capitate; racemes sometimes condensed to umbel-like fascicles. Flowers usually ± zygomorphic. Sepals usually free, sometimes ± connate. Petals imbricate in bud, usually with the dorsal within and overlapped by the lateral, free or sometimes connate below, usually 5, sometimes reduced to 1 or 0. Stamens usually 10 or fewer (rarely numerous), free or ± connate below. Pods various. Seeds generally without areoles.
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| Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
| Source | http://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=43 |
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Zenkeria is a genus of South Asian plants in the grass family.[1][2]
- Zenkeria elegans Trin. - Tamil Nadu; naturalized in Sri Lanka
- Zenkeria jainii N.C.Nair, Sreek. & V.J.Nair - India
- Zenkeria obtusiflora (Thwaites) Benth. - Sri Lanka
- Zenkeria sebastinei A.N.Henry & Chandrab. - Kerala
- Zenkeria stapfii Henrard - Tamil Nadu, Sri Lanka
References[edit]
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| Rights holder/Author | Wikipedia |
| Source | http://en.wikipedia.org/w/index.php?title=Zenkeria&oldid=646244180 |
Bradburia is a North American genus of flowering plants in the daisy family, Asteraceae.[3][4][5][6][7][8]
- Bradburia hirtella Torr. & A.Gray - Texas, Louisiana, Tamaulipas
- Bradburia pilosa (Nutt.) Semple - southeastern + south-central USA (TX OK KS MO KY AR LA MS TN AL GA FL SC NC + VA)
References[edit]
- ^ Tropicos, Mauchia Kuntze
- ^ a b Flann, C (ed) 2009+ Global Compositae Checklist
- ^ a b Tropicos, Bradburia Torr. & A. Gray
- ^ Torrey, John & Asa Gray. 1842. A flora of North America :containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico, arranged according to the natural system 2(2): 250
- ^ Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Astereae". Euro+Med PlantBase. Freie Universität Berlin. Retrieved 2009-07-18.
- ^ UniProt. "Tribe Astereae" (HTML). Retrieved 2009-07-18.
- ^ National Herbarium of New South Wales. "Genus Kippistia". New South Wales FloraOnline. Royal Botanic Gardens, Sydney. Retrieved 2009-07-18.
- ^ "Polyarrhena Cass.". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Retrieved 2009-07-18.
- ^ Biota of North America Program 2013 county distribution maps
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| Rights holder/Author | Wikipedia |
| Source | http://en.wikipedia.org/w/index.php?title=Bradburia_(plant)&oldid=637749891 |