Chamaephyte


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chamaephyte

[′kam·ə‚fīt]
(ecology)
Any perennial plant whose winter buds are within 10 inches (25 centimeters) of the soil surface.

Chamaephyte

 

a life form of plants whose renewal buds are found a short distance (20–30 cm) above the ground and are usually protected in winter by the snow cover. Chamaephytes include shrublets (whortleberry, heath), subshrublets (thyme, many species of wormwood), certain perennial herbs (Lamium), and mosses. Chamaephytes prevail in tundras, high mountains, deserts, and certain Mediterranean types of vegetation. The term “chamaephyte” was proposed by the Danish botanist K. Raunkiaer.

References in periodicals archive ?
The life form spectrum of the recorded species showed the prevalence of theorphytes (37%) followed by chamaephytes (32%), geeophytes (13%), hemicryptophytes (10%) and Phanerophytes (8%).
Among which chamaephyte, a perennial plant that sets its dormant vegetative buds just at or above the surface of the ground; geophyte, a perennial plant that propagates by underground bulbs or tubers or corms; phanerophyte, the surviving buds or shoot apices are borne on shoots which projected into the air.
59% of the variation in the data, separating groups of chamaephyte (FG3) and therophytes II (FG7) on the left-hand side of the diagram with transects associated with wetter grassland areas, except T10 and TI 1 (2007).
A Saharo-Arabian fragrant chamaephyte that grows in extreme deserts that is common by local Bedwins to have anti-diabetic effects and it is sold in local markets for this purpose.
In his classification, there are five major classes, arranged according to increased protection of the regeneration buds: phanerophytes, chamaephytes, hemicryptophytes, cryptophytes, and therophytes.
In terms of life forms, 9% were therophytes, 23% hemicryptophytes, 6% geophytes, 42% chamaephytes, 14% nanophanerophytes, 3% microphanerophytes, and 3% helophytes.
Comparing life forms we observed that bryophytes and lichen species were often positively associated, associations among chamaephyte species were unusual and caespitose hemycriptophyte species often participate in positive associations.
Origanum ramonense is a low chamaephyte that is confined to smooth limestone rocks in the Negev Highlands.
Arenaria cumberlandensis Wofford & Kral [Minuartia cumberlandensis (Wofford & Kral) McNeill (McNeill, 1980; Wofford, 1981)], is a passive chamaephyte (cf.
muticus and Festuca curvifolia, the former a calcareous, suffruticose chamaephyte found in both ranges; the second a silicicolous grassland species that leads the psycroxerophilous high-mountain pastures of the Sierra de Guadarrama and has a geographical distribution restricted to siliceous ranges in central Spain.
The biological types are: C chamaephyte, G geophyte, H hemicryptophyte, Hy hydrophyte, P phanerophyte, T therophyte.
The extreme climatic conditions, overgrazing, over exploitation of plants and anthropogenic activities supported the annuals and short lived plants so the life form was dominated by therophytes followed by hemicryptophytes and chamaephytes.