hemicryptophyte


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Related to hemicryptophyte: Phanerophyte

hemicryptophyte

[¦he·mē′krip·tə‚fīt]
(ecology)
A plant having buds at the soil surface and protected by scales, snow, or litter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Sur le cote oppose se trouvent les taxons, Velezia rigida (-1.87), Plantago lagopus (-1.42), Echinaria capitata (-1.21), Paronychia argentea (-1.71), une hemicryptophyte. Cet axe se caracterise par un gradient latitudinal allant du pole positif au pole negatif.
The proportions of herbaceous-subshrub/shrub-arboreal (epiphytes, succulents, chamaephytes, hemicryptophytes, and therophytes /phanerophytes) species were calculated for each of the vegetation types, for cerrado-caatinga transition, and for the different cerrado physiognomies.
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.
In terms of life forms, 9% were therophytes, 23% hemicryptophytes, 6% geophytes, 42% chamaephytes, 14% nanophanerophytes, 3% microphanerophytes, and 3% helophytes.
Regarding ecological features, the majority of the species exhibited the hemicryptophyte life-form, herbaceous habit and terricolous habitat, which are common among this plant group.
In his classification, there are five major classes, arranged according to increased protection of the regeneration buds: phanerophytes, chamaephytes, hemicryptophytes, cryptophytes, and therophytes.
The chamaephyte Kickxia petrana and the hemicryptophyte Silene danaensis are also endemic, common to sandstone and limestone cliffs in southwestern Jordan.
albopilosa Kentucky Life form Phanerophyte 39.1 51.4 16.3 Chamaephyte 1.1 2.9 1.4 Hemicryptophyte 37.9 28.6 51.2 Cryptophyte 12.6 10.0 15.3 Therophyte 9.2 7.1 15.8 Growth form Trees 19.0 26.7 7.7 Shrubs 10.0 14.0 6.8 Woody vines 7.0 4.7 2.5 Forbs(a) 40.0 20.9 61.9 Graminoids 10.0 16.3 16.8 Ferns 13.0 17.4 4.3 a Includes all herbaceous spermatophytes, except graminoids.
Adding, the chamaephytes species such as Arenaria pungens, Hormathophylla spinosa, Sideritis glacialis, or even, Thymus serpylloides, are today prospering in the area, therefore the chamaephytes and hemicryptophyte mixture observe by Quezel (1953) at 3000 m reach now higher altitudes.