Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
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PalmateWith subunits or lobes arising from a single point. | |
PanicleA branching inflorescence or flower cluster that is broad at the base and tapers towards the top. | |
PapaveraceaePoppy Family. Comprised of 44 genera and 825 species. Most are annual or perennial herbaceous plants but there are also some woody shrubs and small tropical trees. Members of this family usually have two sepals enclosing the flower bud, which fall off when it opens, four brightly-coloured petals, many stamens and a rounded seed pod forming inside the flower. | |
PappusHairs, scales or bristles on the top of the avary and seed. | |
PercidaePerch Family. Includes perches, walleyes and darters. Comprised of 11 genera and more than 200 species that prefer fresh and brackish waters of the Northern Hemisphere. Characterized by having a dorsal fin split into two which are normally separated or have a narrow connection. | |
PerennialRefers to plants that grow consistently between seasons and do not require additional reproduction to continue growth. | |
PerfoliateAttached through the underside of the blade near the base, as if passing through the leaf. | |
PerigyniumSac-like structure encasing the female flower with a single ovary. | |
PetioleThe stalk portion of a leaf. | |
PhyllaryAn involucral bract of flowers in the family Asteraceae. | |
PinnateArranged in two rows along an axil, like barbs on a feather. | |
PistilThe female organ of the flower, composed of an ovary, style and stigma. | |
PithThe central tissue in a stem or root, surrounded by vascular tissue. | |
Plumbaginaceae | |
Poaceae(formerly Gramineae) Grass Family. Comprised of about 800 genera and 12,000 species. It is the world's single most important source of food and rank among the top five families of flowering plants in terms of species numbers. They account for 24% of the Earth's vegetation. | |
PolemoniaceaePhlox Family. Comprised of 18 genera and about 385 species. They are annual or perennial, mostly herbaceous plants but some are woody. Members of this family usually have five joined petals, five stamens, a calyx made of five parts joined into a tube, alternate or opposite leaves, a seed pod with three chambers forming inside the flower and sticky seeds. | |
PolygonaceaeSmartweed or Buckwheat Family. Comprised of 48 genera and about 1,200 species. Most are perennial, herbaceous plants with swollen nodes but trees, shrubs and vines are also present. Leaves are simple and arranged alternately on the stems. | |
Pontederiaceae | |
Potamogetonaceae | |
PrimulaceaePrimrose Family. Comprised of 58 genera and about 2,600 species. They are mostly grown as ornamentals and include annual or perennial herbs, shrubs, lianas and trees. Members of this family usually have winter storage organs, five petals joined in a tube, five stamens joined to the tube opposite the petals, calyx of five parts joined in a tube, undivided leaves, and a seed pod with one chamber forming inside the calyx. | |
PubescentDescription of plants with hair-like growth, commonly found on stems and leaves. These hairs often provide protection against herbivores. | |