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%).
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.
Proposed by Raunkiaer (1934), the system classifies plants according to forms used to protect their perennating buds during unfavorable seasons, and groups them into five main classes: therophytes, cryptophytes, hemicryptophytes, chamaephytes
and phanerophytes, according to their different resistance strategies to environmental conditions.
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.
The first axis of PCA explained 37.59% 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.
(2005) Ph phanerophyte, Ch chamaephyte
, He hemicryptophyte, Cr cryptophyte, Th therophyte Fig.
= November 2002 (early rainy season), Ph = phanerophyte, Ch = chamaephyte
, H = hemicryptophyte, Cr = cryptophyte and Th = therophytes.
C Geophyte 1C castellanum Adenocarpus argyrophyllus C Microphanerophyte 1C Adenocarpus telonensis S Nanophanerophyte 2 Allium schmitzii NS Helophyte 2 Allium victorialis N Geophyte 1C Anarrhinum duriminium N Chamaephyte
2 Anarrhinum N Hemicriptophyte 1A longipedicellatum Anthemis alpestris N Chamaephyte
1C Antirrhinum cirrhigerum S Chamaephyte
2 Antirrhinum linkianum NS Chamaephyte
2 Anthyllis vulneraria N Chamaephyte
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.
Abbreviations are: HScap., scapose hemicryptophyte; ChPulv., pulvinate chamaephyte
; ChSuffr., suffruticose chamaephytes