Copy of `TCM (R&D) - Vegetation management and ecology`

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TCM (R&D) - Vegetation management and ecology Category: Animals and Nature > Vegetation Date & country: 25/11/2007, UK Words: 138

Pubescent
Covered with short, fine, soft hairs.

Raceme
A group of flowers arranged along a single peduncle.

Rachis
The extension of a leaf stalk into a compound leaf.

Ray-florets
A single flower with a tubular petal, usually at the edge of a compound daisy flower.

Reflexed
Bent backwards or downwards towards the stem.

Reniform
Kidney-shaped.

Reticulate
Netted with veins.

Rhizomatous
Bearing specialised stems, rooting and shooting from the nodes.

Rhizome
A specialized underground or surface stem, capable of producing aerial parts along its length.

Rosette
Leaves radiating from a single crown, at ground level.

Samara
A one-seeded winged fruit.

Sepal
A part of the outer flower-protecting structure.

Serrate
Bearing a saw-toothed edge.

Sessile
Stalkless or apparently so.

Sinus
The space between two divisions; eg. lobes.

Sorus
A cluster of sporangia, generally enclosed by an indusium.

Spathulate
Hounded oblong, narrower at the base than the apex.

Stamen
The male pollen-producing organ.

Standard
The large, upright, uppermost petal.

Stigma
The pollen accepting organ.

Stipule
A leafy appendage at the base of a petiole.

Stratification
Exposure of seeds to cold and heat as part of the dormancy requirement.

Style
The elongated narrow structure supporting the pollen receptor.

Sub-glabrous
Almost smooth and hairless.

Suborbicular
Almost circular.

Subshrub
A perennial with woody bases to soft stems.

Substrate
Any material in which plants may be grown.

Succulent
Thickly cellular and fleshy.

Taxonomy
The science of identifying, naming and classifying plants.

Terete
Cylindrical, of smoothly circular cross section.

Terrestrial
Growing in the soil, on land.

Trichome
An unbranched hair-like outgrowth.

Trigonous
Being a solid body of triangular section.

Truncate
As if cut cleanly across, at right angles to the midrib.

Umbel
A flat flowerhead, with all the pedicels arising from the same point.

Valve
One of the parts into which a dehiscent fruit splits when mature

Vegetative
Asexual reproduction, without seed formation.

Whorl
Where three or more organs are arranged around a node.