Plant

static/images/pinecone_inside.jpg

The inside of a pinecone_.

A plant is an organism that ... Examples of plants include fruit, trees, tea, coffee, cotton, grain (cereal and legume_).

Plants typically possess `cell walls`_ containing cellulose.

Plants produce food from sunlight_ via photosynthesis_.

Plants requires nutrients including water, nitrogen_, `carbon dioxide`_.

Plants extract carbon dioxide from the air and produce oxygen.

Some plants release pollen.

Contents

1   Study

The scientific study of plants is called botany, a branch of biology.

2   Usage

Plant products are used to produce food and drinks_, lumber, dye, textiles, paper, rubber, and drugs.

3   History

Aristotle originally classified all living things into one of two groups: plants and animals.

4   Substance

4.1   Secretions

Resin is a hydrocarbon secretion of many plants, particularly coniferous trees. It is distinct from other liquid compounds found inside plants or exuded by plants, such as sap_, latex_, or mucilage_.

5   Classification

5.1   Succulent

A succulent (from Latin sucus "sap") is a plant that has some parts that are more than normally thickened and fleshy, usually to retain water in arid climates or soil conditions. For example, catci.

5.1.1   Care

Succulents need well-draining soil in order to thrive. The ideal container for houseplant succulents is an unglazed terracotta pot with drainage holes.

Despite the fact that many stores sell them as such, succulents make terrible terrarium plants.

A very simple general rule for watering your succulents is allow to dry completely then soak completely. If your plant is in a terra-cotta pot, pick it up when you first plant it to get a feel for its weight, then after a few days to a week when the plant is settled and you water it, pick it up again. After a while, you’ll be able to tell by weight alone when they need water.

If your plant has gone from compact to stretched out, or the leaves are drooping, it is probably suffering from etiolation, which means it is not getting enough light. Most succulents require partial to full sun, so locations or windows with eastern/southern natural light are best.

If your plant is happy, you may notice additional miniature plants, usually called pups, sprouting around the base or from its stems. These can be snipped/cut off with a clean blade, set aside for a day or two in a shaded area to allow a callous to form, then repotted.

Many succulents can also be propagated simply from a leaf or stem cutting. Simply place the cutting on top of loosely packed soil mix in bright but indirect sunlight, leave it alone until it starts sending out roots/sprouts small stems, then tend to it as you would a regular plant. This process can often take from a week or two to over a month, so be patient and don't overwater, or the l

5.1.2   Powdery mildew

Powdery mildew likes the same type of habitat that succulents like: warm, relatively dry areas. Because succulents and powdery mildew thrive in similar living conditions, succulents are the most infected types of plants, according to the University of Rhode Island GreenShare website. Your infection may just look like the classic white, powdery coating.

At first, powdery mildew may seem harmless. Your succulent may be able to live with white, moldy-looking disease, and even thrive, for some time. As the infection spreads and gets worse, you may notice deflated, damaged or deformed leaves.

To treat powdery mildew, gently remove any infected leaves and stems that have begun to show signs of damage and then apply a fungicide. Fungicides containing sulfur, neem oil or triforine may be effective at killing powdery mildew on healthy leaves, stems and buds.