Glossary


Raceme
An unbranched, elongated inflorescence with pedicellate flowers maturing from the bottom upward i.e., flowers attached to the main stem by short stalks.
A raceme of Hebe stricta
Rachis
the axis of an inflorescence or of a compound leaf
Rachis of nikau
Ray
An outer ring of strap-like florets in the head of Asteraceae (daisy) flowers.
Ray on Olearia furfuracea
Re-introduction
Translocating wild or cultivated individuals to sites where the taxon has been known to occur in the past, but from which it has disappeared.
Recurved
Curved backward.
Recurved as illustrated by Cordyline pumilio Recurved foliage of matai
Reflexed
Bent back on itself
Reniform
Kidney shaped.
Leaf showing a reniform (kidney) shape Kidney shaped leaves of kidney fern
Repand
With a slightly wavy margin.
The wavy margin of Brachyglottis repanda (rangiora)
Replum
The outer structure of a pod in which the valves have dehisced (persists after the opening of the fruit)
Replum Carmichaeilia
Restiad
Area dominated by rush-like plants (collectively known as restiads) of the family Restionaceae. Includes Chatham Island and North Island Sporodanthus and oioi (Apodasmia similis)
Retrorse
Pointing backward.
Myosotidium hortensium
Retuse
A shallow notch at the rounded or blunt apex of a leaf.
A retuse leaf tip
Rhizoid
Any of various slender filaments that function as roots in mosses and ferns and fungi.
Rhizomatous
With underground creeping stems.
Rhizome
An underground stem (usually spreading horizontallly or creeping) or short and erect.
Rhizome of Ficinia spiralis
Rhombic
Diamond-shaped.
Rhomboid
Diomond shaped, nearly rhombic.
Leaf showing a diamond shape Diamond shape on Halocarpus kirkii
Riparian
Relating to or living or located on the bank of a natural watercourse (as a river) or sometimes of a lake or a tidewater.
Riparian vegetation
Riparian margin
Refers to the edges of streams, rivers,lakes or other waterways.
Riparian margin
Riparian plants
Refers to plants found growing near the edges of streams, rivers or other waterways.
Riparian zone
A strip of land next to streams, rivers, and lakes where there is a transition from terrestrial (land vegetation) to aquatic (water) vegetation. Also known as “berm”.
Riverine
Pertaining to rivers, streams and such like flowing water systems.
Rootstock
A short, erect, underground stem.
Rosette
A radiating cluster of leaves.
A rosette of Celmisia spectabilis A rosette of Cordyline pumilio
Rostellum
In orchids, a modified stigma that prevents self-fertilisation.
Rostellum of an orchid flower
Rosulate
A dense radiating cluster of leaves.
Rugose
Wrinkled.
The rugose foliage of Elatostema rugosa
Rugulose
Having small wrinkles.
Runcinate
Sharply pinnatifid or cleft, the segments directed downward.
A runcinate leaf shape
Runner
A trailing stem that roots at the nodes.
Rupestral
Growing on rocks.
Peperomia tetraphylla growing on rocks
Rushes
A group of distinctive wetland plants. They have solid stems (grasses have hollow stems), true rushes Juncus sp. have rounded leaves.

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