Geophytes


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Geophytes

 

perennial plants whose organs are equipped to overwinter or endure prolonged drought and whose renewal buds (on rhizomes and tubers and in bulbs) are hidden in the ground. Geophytes are one of the life-forms of plants. The parts of geophytes that are destined for life under unfavorable conditions are protected by the soil, and during cold winter, by the remains of dead parts of plants and by snow. Many bulbous plants (for instance, the family Liliaceae), rhizomes (including many grasses and sedges), and tuberous plants are geophytes.

References in periodicals archive ?
Mise en defens Parcours Libre Type biologique FA FR (%) FA FR (%) Phanerophytes (Ph) 3 4,23 1 3,57 Chamephytes (Ch) 19 26,8 8 28,6 Hemicryptophytes (He) 14 19,7 7 25 Therophytes (Th) 32 45,1 11 39,3 Geophytes (Ge) 3 4,23 1 3,57 Total 71 100 28 100 Spectre biologique Th>Ch>He>Ph=Ge Th>Ch>He>Ph=Ge Tableau 6.
Dynamics of porcupine (Hystrix indica) diggings: their role in the survival and renewal of geophytes and hemi-cryptophytes in the Negev desert highlands.
Temperature requirements for seed germination and seedling development determine riming of seedling emergence of three monocotyledonous temperate forest spring geophytes.
Geophytes were present in low percentage and they are characteristic of Mediterranean climate.
Florogenesis of the Mediterranean geophyte Narcissus tazetta and temperature requirements for flower initiation and differentiation.
Coastal residents dug up geophytes and hunted inland game until the moon issued a call to the sea, Marean proposed at the anthropology meeting.
The vegetation is maintained by fire-induced seed germination (Sweeney 1956, Keeley 1991, Keele y and Fotheriagham 1997, 1998), obligate postfire shrub seedling regeneration (Keeley and Zedler 1978), and resprouting from geophytes and fire resistant lignotubers (Jepson 1916, Anfuso 1982; review by James [1984]).
Four plant growth types occur: tall protea shrubs with large leaves, called proteoids; heathlike shrubs, the ericoids; wiry, reedlike plants, called restioids; and bulbous herbs, or geophytes.
Although crystalline caatingas have shallow soils, presumably retaining edaphic water for a short time after the rainfall has ended, the fact that they have nutrient rich soils should facilitate rapid nutrient uptake and regrowth of therophytes and the aerial parts of geophytes, chamaephytes and hemicryptophytes once the rainy season returns.
Observations on the feeding habits of Indian crested porcupine (Hystrix indica) and the distribution of some hemicryptophytes and geophytes in the Negev desert highlands.
The functional groups of chamaephytes and therophytes II were associated with wetter sites, while the groups of non-tussock hemicriptophytes I, tussock hemicriptophytes (FG4), and geophytes (FG5) were associated to the drier ones.