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zygomorphic |
|
architecture |
perianth, calyx, corolla |
Bilaterally symmetric; divisible into two essentially equal portions along only one median logitudinal plane. |
|
zoned |
|
coloration |
|
Having two or more fairly distinctly delineated areas of contrasting hues and/or intensities. |
|
zig-zag |
= flexuous |
course |
|
Having alternating angular bends to either side, more or less straight between the bends. |
|
xylem |
= wood |
STRUCTURE |
|
The water-conducting and usually main supporting tissue of a plant or portion thereof, characterized by the presence of tracheary elements (tracheids and sometimes vessel elements); the lignified tissue of a plant or component structure, composed almost entirely of secondary tissue, i.e., that derived by secondary or lateral growth from a cambium in structures a season or more old. See also sapwood, heartwood. |
|
xylary |
|
position |
|
Within or otherwise directly associated with the wood. |
|
xerocleistogamous |
|
reproduction |
flower |
Normally chasmogamous but facultatively cleistogamous during drier than normal periods. |
|
xenogamous |
= allogamous, allomictic, cross-fertilizing, exogamous |
reproduction |
taxon |
Having fertilization regularly involving gametes derived from different plants. |
|
wrinkled |
= corrugate, rugose |
relief |
|
Having irregular, narrow ridges or creases, the intervening areas flat to shallowly concave or convex, appearing overall as though crumpled and then spread out. See also rugulose. |
|
worm-shaped |
= vermiculate |
solid shape |
|
Basically cylindric, elongate, and slender with bluntly rounded ends, variously curved over its length. |
|
woolly |
> lanate |
pubescence |
|
Of or bearing relatively long, moderately stout, intertwined, somewhat matted, capillate trichomes. |
|
woody-clumping |
|
habit |
plant |
Having or developing the character of a woody clump. See also arboreous, arborescent, bushy, frutescent, fruticose, shrubby, subshrubby, suffrutescent, suffruticose, tree-like. |
|
woody clump |
|
nominative |
plant |
An aggregate of woody main stems that arise from belowground organs derived from a single progenitor; the members of a clump are individually tree- or shrub-like and sometimes become physically separate over time. See also bush, frutex, shrub, subshrub, suffrutex, tree, undershrub. |
|
woody |
= ligneous |
texture |
|
Of or resembling wood (xylem). |
|
wood |
= xylem |
STRUCTURE |
|
The water-conducting and usually main supporting tissue of a plant or portion thereof, characterized by the presence of tracheary elements (tracheids and sometimes vessel elements); the lignified tissue of a plant or component structure, composed almost entirely of secondary tissue, i.e., that derived by secondary or lateral growth from a cambium in structures a season or more old. As commonly used, the term wood generally refers only to secondary xylem, which constitutes the bulk of a mature woody stem, but it properly refers also to primary xylem, wherever found. See also sapwood, heartwood. |
|
wiry |
|
architecture |
axis |
Relatively very narrow and elongate, tough, and resiliently flexible. |
|
winter annual |
|
nominative |
plant |
Annual, germinating in autumn, overwintering in a vegetative state (usually as a rosette aboveground), reproducing sexually from early spring through summer, and dying promptly thereafter. See also summer annual. |
|
wingless 2 |
= exalate |
architecture |
pollen grain |
Lacking lateral lobes or enations that resemble sacs or somewhat inflated wings. |
|
wingless 1 |
= exalate |
architecture |
|
Lacking elongate, relatively thin protrusions or appendages that resemble wings. |
|
winged 2 |
= alate, saccate, vesiculate |
architecture |
pollen grain |
Having lateral lobes or enations that resemble sacs or somewhat inflated wings. |
|
winged 1 |
= alate |
architecture |
|
Having one or more elongate, relatively thin protrusions or appendages that resemble wings. |
|
…winged |
= …pterous |
architecture |
|
Having the number of wings (alae) indicated by the prefix; as in 3-winged, five-winged. |
|
wing 2 |
= ala |
STRUCTURE |
|
One of the two lateral petals in a papilionaceous corolla. |
|
wing 1 |
= ala |
STRUCTURE |
|
Any elongate, relatively thin protrusion or appendage. |
|
wind-pollinated |
= anemophilous |
reproduction |
plant, strobilus, flower |
Having the pollen normally transported between strobili or flowers by air currents. |
|
whorled |
= cyclic, seriate, verticillate |
arrangement |
|
Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. |