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You are looking at 21-30 of 9,435 items for:

Plant Sciences and Forestry x Plant Physiology x clear all

Acaena

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 52 words.

A genus of wind-pollinated, mat-forming plants that occur mainly in the subtropics and temperate regions. There are about 100 species; 90 species are known in South America, 14 in New...

Acalypha

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 81 words.

A genus of *shrubs and small trees in which the flowers are unisexual and apetalous, males having elongate, twisted ...

Acanthaceae

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 97 words.

A family, mainly of shrubs, in which the leaves are simple, *opposite, and *decussate. The flowers are bisexual and ...

Acanthus

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 81 words.

A genus of shrubs and perennial *herbs, most of which are *xeromorphic and have spiny leaves. Some species are cultivated as ornamentals. The upper lip of the ...

acaulescent

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 19 words.

Applied to plants that lack a stem or in which the stem is very short or hidden underground.

accessory bud

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 18 words.

An additional bud that forms above, below, or to the side of an *axillary bud.

accessory cell

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 5 words.

accessory pigments

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 21 words.

In *photosynthesis, pigments that can absorb light energy and pass the electrons they emit to *primary pigments.

accidental species

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 55 words.

One of five classes of fidelity used by the *Braun–Blanquet school of phytosociology in the description and classification of plant communities. Accidentals are rare species in the...

acclimatization

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 65 words.

The changes involving the synthesis of *proteins, *membranes, and *metabolites that occur in a plant in response to chilling or freezing temperatures, which protect ...