pittosporum
Any plant of the genus Pittosporum, various Old World shrubs and trees.

pittosporums
plural of pittosporum

plagioclimax
An altered or reduced climax of a plant ecosystem caused by human activity.

plagioclimaxes
plural of plagioclimax

plagiosere
A series of plant communities that are interrupted or disturbed by an outside agent

plagioseres
plural of plagiosere

plagiotropism
The growth of a plant at an orientation to the angle of a stimulus

planogamete
One of the motile ciliated gametes, or zoogametes, found in isogamous plants and green algae.

planogametes
plural of planogamete

planthropologies
plural of planthropology

planthropology
The study of plants in order to understand their relationships to humans and human culture.

planticle
A young or small plant, or plant in embryo.

planticles
plural of planticle

plantie
A small plant, especially a small houseplant.

planties
plural of plantie

plantkin
A very small plant.

plantkind
All plants, considered as a group.

plantkins
plural of plantkin

plantlet
A young or small plant used as a propagule.

plantlets
plural of plantlet

plantling
A small, young, or miniature plant.

plantlings
plural of plantling

plantstand
A tall narrow table on which a pot plant can be displayed.

plantstands
plural of plantstand

plasmolysation
Synonym of plasmolysis.

plasmolyses
third-person singular simple present indicative of plasmolyse

plasmolysis
the shrinking of protoplasm away from the cell wall of a plant or bacterium due to water loss.

plastoglobulin
Any of a group of lipoproteins present in the plastids of many plants

plastoglobulins
plural of plastoglobulin

plastome
The part of the genome of a photosynthetic plant found in its plastid

plastomes
plural of plastome

platanthera
Any orchid of the genus Platanthera.

platantheras
plural of platanthera

pleiochasium
An inflorescence in which several buds come out at the same time

pleistophyte
Alternative form of pleustophyte.

pleistophytes
plural of pleistophyte

plerome
The central portion of the apical meristem in a growing plant root or stem which, according to the histogen theory, gives rise to the endodermis and stele.

pleurocarp
Any pleurocarpous moss, such as those of genus Hypnum.

pleurocarps
plural of pleurocarp

pleurothallid
Any orchid of the genus Pleurothallis

pleurothallids
plural of pleurothallid

pleustophyte
An aquatic plant that floats, sometimes limited to those without roots or holdfasts fixed to soil or sediment.

pleustophytes
plural of pleustophyte

ploong
A Southeast Asian grass, Arundinella setosa.

plumbago
A plant of the genus Plumbago; leadwort.
Graphite.

plumbagoes
plural of plumbago

plumbagos
plural of plumbago

plumeseed
A small flower of the genus Rafinesquia.

plumula
A plumule.
A down feather.

plumulae
plural of plumula

plumule
The first bud, or growing point, of a plant embryo, situated above the cotyledons.
A down feather.
The aftershaft of a feather.
One of the featherlike scales of certain male butterflies.

plumules
plural of plumule

pluot
A fruit which is a cross between a Japanese plum and an apricot, featuring more characteristics of plums than those of apricots.

poataniwha
Melicope simplex, a shrub of New Zealand.

pocan
The poke, Phytolacca americana (formerly Phytolacca decandra).

podecia
plural of podecium

podecium
Misspelling of podetium

podetia
plural of podetium

podetium
A stalk which bears the fructification in some lichens, such as the reindeer moss.

podocarpacean
Any conifer of the family Podocarpaceae

podocarpaceans
plural of podocarpacean

podosperm
The stalk of a seed or ovule.

podospermia
plural of podospermium

podospermium
Synonym of podosperm.

podosperms
plural of podosperm

podostemoid
Any plant of the subfamily Podostemoideae

podostemoids
plural of podostemoid

pohuehue
Any of various climbing plants of the genus Muehlenbeckia that grow in New Zealand,
Any of various climbing plants of the genus Muehlenbeckia that grow in New Zealand,
Any of various climbing plants of the genus Muehlenbeckia that grow in New Zealand,
Any of various climbing plants of the genus Muehlenbeckia that grow in New Zealand,
Any of various climbing plants of the genus Muehlenbeckia that grow in New Zealand,
beach morning glory (Ipomoea pes-caprae)

poinsetta
Misspelling of poinsettia.

poinsettas
Misspelling of poinsettias.

poinsettia
A plant, Euphorbia pulcherrima, with rather small and insignificant flowers surrounded by large bright red leaves; native to Mexico and Central America and widely cultivated as a garden plant;; widely used in Christmas floral displays.

poinsettias
plural of poinsettia

pointal
The pistil of a plant.

pointals
plural of pointal

pointlet
An extension of the rachis past the last leaf pair in a paripinnate leaf that usually represent an aborted leaf.

pointlets
plural of pointlet

pointsettia
Misspelling of poinsettia.

pointsettias
Misspelling of poinsettias.

poisonvetch
Any of various poisonous plants of the genus Astragalus.

poisonvetches
plural of poisonvetch

poisonweed
The plant Delphinium geyeri, poisonous to cattle.

polleniser
Alternative form of pollenizer.

pollenisers
plural of polleniser

pollenizer
A plant that provides pollen.

pollenizers
plural of pollenizer

polliniser
Alternative form of pollenizer.

pollinisers
plural of polliniser

pollinium
A coherent mass of pollen, as in the milkweed and most orchids, which is dispersed as a single unit during pollination.

pollinizer
Alternative form of pollenizer.

pollinizers
plural of pollinizer

polyadelph
Any plant of the class Polyadelphia, having the stamens united in three or more bundles by the filament.

polyadelphs
plural of polyadelph

polyander
Any plant of the class Polyandria.

polyanders
plural of polyander

polyanth
polyanthus

polyantha
Any of several hybrids of Rosa multiflora that have clusters of small flowers; a polyantha rose; Rosa polyantha.

polyanthas
plural of polyantha

polyanthi
plural of polyanthus

polyanths
plural of polyanth

polyanthus
A type of primula, apparently originally from a hybrid between the cowslip and the primrose, having many different-coloured flowers.

polyanthuses
plural of polyanthus

polycarp
A polycarpic plant.

polycarps
plural of polycarp

polycot
A polycotyledon.

polycots
plural of polycot

polycotyledon
A plant that has many, or more than two, cotyledons in the seed.

polycotyledons
plural of polycotyledon

polygam
A polygamous plant.

polygams
plural of polygam

polygastrica
The infusoria.

polygonies
plural of polygony

polygony
Any plant of the genus Polygonum, especially knotgrass.

polygyn
A plant of the order Polygynia.

polygyns
plural of polygyn

polyphyllin
Any of a class of saponins, isolated from the herb Paris polyphylla, that has anticancer activity

polyphyllins
plural of polyphyllin

polysporangiate
Synonym of polysporangiophyte.

polysporangiates
plural of polysporangiate

polysporangiophyte
Any plant in which the sporophyte has a structure of branching stems (axes) terminating in sporangia.

polysporangiophytes
plural of polysporangiophyte

polyspore
Any of a group of twelve to sixteen spores present in some red algae

polyspores
plural of polyspore

polyspory
when more than 4 pollen grain are attached in a tetrad

polystele
a segment of plant stem which is characterised by possession of more than a single stele.

polysteles
plural of polystele

polytrich
maidenhair (moss)

pomaderris
Any plant of the genus Pomaderris.

pomato
A plant produced by grafting a tomato plant and a potato plant, producing cherry tomatoes on the vine and potatoes under the ground.

pomatoes
plural of pomato

pomodori
plural of pomodoro

pomodoro
A variety of pear-shaped tomato from Italy; San Marzano tomato.
Ellipsis of pomodoro sauce.
A 25-minute time interval spent working (followed by a five-minute break), used as part of the Pomodoro time management system.

pomodoros
plural of pomodoro