Phenotypic plasticity of growth form, from prostrate to
caespitose, of A.
divaricatus is a
caespitose perennial with short rhizomes.
Briske, "Below-ground carbon and nitrogen accumulation in perennial grasses: a comparison of
caespitose and rhizomatous growth forms," Plant and Soil, vol.
Plant mass formed by entangled filaments,
caespitose; main filament and branches similar or with slightly distinct in diameter; filaments uniseriate, 7.0-15.0(-17.5) [micro]m wide; branches usually on one side of the filament; sheath thin to moderately thick, hyaline to yellowish brown; trichomes constricted, 5.0-13.0 [micro]m wide; cells 4.0-10.0(-12.0) [micro]m long, 0.4-1.5 times longer than wide; cell content granulated, blue-green; heterocytes not abundant, 6.09.3um long, 5.5-6.8um wide.
and 0.5 cm tall, which can be
caespitose; laciniae flat, richly dichotomously branched, distal parts fanshaped branched; these distal parts, which do not twist or do it slightly, have granular soralia on the tips.
The vegetation is composed of a matrix of
caespitose grasses (e.g.
Some prefer a moist soil, including the tufted hair grass, Deschampsia
caespitose, and another of my favourites, the Japanese blood grass Red Baron (Imperata cylindrical).
It grows on very shallow soil, is
caespitose, and has simple inflorescences.
Phenotypic selection within each cycle centered on those genotypes with the
caespitose growth habit rather than spreading genotypes.
ramosa due to its
caespitose form, however height was the best predictor in this analysis.
Caespitose (tuft-forming) seaweeds are ubiquitous in the intertidal environment, and in the lower levels the most conspicuous seaweeds are rhodophyceans of the genus Laurencia, although there are also phaeophytes of the genera Ectocarpus and Chnoospora, in addition to highly-branched chlorophytes of the genera Cladophora and Chaetomorpha.