Wednesday, 15 February 2012

Wildflowers Glossary

A B C D E F G H I K L M N O P R S T U V W
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Saprophyte

A plant that feeds on decayed vegetaion in the ground.

Scale

Appendage (normally small) not resembling a leaf, as found in Coltsfoot. 

Scape

Leafless, stem bearing flowers.

Schizocarp

A dry dehiscent fruit that at maturity splits into two or more one-seeded parts (mericarps).

Secund

Facing in the same direction.

Seed pod

Single pod with single row of seeds. Splits in two lengthways to release the seeds. E.g. Annual Wall Rocket.

Sepal

A leaf of the calyx; the outer whorl of the perianth.

Septum

A thin partition or membrane separating the individual seeds within a seed pod or fruit.

Sessile

Without a stem.

Shrub

A relatively low woody plant having several branches near the base.

Silicula

Fruit of the cabbage family, often rounded and three times longer than it is broad.

Silique

A many-seeded capsule of the Mustard family with two valves splitting from the bottom and leaving the placentae with the false partition between them. 

 

Simple

Leaves not divided into leaflets.

Solitary

Flower borne singly, either from the base of a plant or a leaf axil and not in a formal inflorescence.

Spadix

A fleshy spike with unstalked flowers.

Spathe

A large, hooded bract enclosing an inflorescence, especially a spadix.

Spatulate

Referring to a spoon-shaped leaf, narrower towards the base.

Species

The classification of a group of similar individuals that breed true in the wild.

Species

A rank in the classification of organisms, below genus and above subspecies; a taxon at that rank. Its members can...

Speculum

Mirror-like patch found on the petals of some orchids. 

Spike

A log cluster of unstalked flowers along a central stem, as seen in Agrimony.

Spreading

Branching horizontally; hairs at right-angles.

Spur

A hollow pouch, often cylindrical, that projects from a flower, containing nectar.

Stamen

One of the pollen-bearing organs of a flower.

Standard petal

Upright, upper petal of a pea flower that is larger than the others.

Stemless

A plant without an obvious stem but with a flower-stalk that rises directly from the ground.

Stigma

 The apical end of the style where deposited pollen enters the pistil.

Stigma ray

Star-shaped stigma with radiating branches. 

Stipule

A leaf-like organ at the base of a leaf stem.

Stolon

A stem that grows horizontally above or below ground.

Style

The narrow elongated part of the pistil between the ovary and the stigma.

Subshrub

A small perennial with woody stems.

Subspecies

Taxonomic division immediately below species, distinct but interbreeding. 

Succulent

A plant with fleshy leaves.

Suture

The seam along which pods or other fruits split open.

Symbiosis

The relationship between two or more organisms in which all benefit.