|
caducous |
|
duration |
structure |
Deciduous upon or immediately after emergence, with little or no evident senescence beforehand. |
|
butterfly-like |
= papilionaceous |
architecture |
corolla |
Having a relatively large, erect adaxial (upper) petal (the standard, banner or vexillum), two smaller lateral petals (the wings or alae), and two individually smaller but connate or coherent abaxial (lower) petals that together form a carinate structure (the keel or carina), the whole loosely resembling a butterfly with wings spread. |
|
bushy |
< shrubby; >< frutescent, fruticose |
habit |
plant |
Having or developing the character of a bush. See also arboreous, arborescent, subshrubby, suffrutescent, suffruticose, tree-like, woody-clumping. |
|
bush |
< frutex, shrub |
nominative |
plant |
A short shrub that branches from ground level. See also subshrub (suffrutex, undershrub), tree, woody clump. |
|
bursicle |
|
STRUCTURE |
|
A pouch- or flap-like protrusion from the stigma that encloses the caudicle of a pollinium. |
|
bundled 2 (not recommended) |
= fascicled, fasciculate |
arrangement |
|
Disposed in one or more fascicles, the members of each inserted close together and only slightly if at all divergent from one another. |
|
bundled 1 (not recommended) |
= fascicled, fasciculate |
architecture |
inflorescence |
Comprising one or more fascicles. |
|
bundle scar |
|
FEATURE |
|
A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
|
bundle (not recommended) |
= fascicle |
nominative |
inflorescence |
A cluster of pedicellate flowers that are inserted very close together and little if at all divergent from one another, the whole sessile or subsessile. |
|
bulliform |
|
solid shape |
|
Resembling a blister; broad, relatively thin at the periphery, the lower surface approximately flat, the upper shallowly to strongly convex. |
|
bullate |
= blistered, puckered, pustulate |
relief |
|
Having relatively coarse, irregularly disposed, rounded protrusions or convexities resembling blisters. See also papillate (papillose). |
|
bulla pl. bullae |
= blister, pustule |
FEATURE |
|
A relatively coarse, rounded protrusion or convexity. See also papilla. |
|
bulbous |
= bulbose |
architecture |
plant |
Growing from and/or bearing bulbs. |
|
bulbose |
= bulbous |
architecture |
plant |
Growing from and/or bearing bulbs. |
|
bulblet |
= bulbil |
STRUCTURE |
|
A small bulb-like structure produced from a sterile or fertile plant structure other than a bulb, usually within a leaf axil, leaf sinus, or inflorescence, serving as a vegetative propagule. |
|
bulbil |
= bulblet |
STRUCTURE |
|
A small bulb-like structure produced from a sterile or fertile plant structure other than a bulb, usually within a leaf axil, leaf sinus, or inflorescence, serving as a vegetative propagule. |
|
bulbel |
|
STRUCTURE |
|
A comparatively small bulb branching laterally from a larger, currently primary one. |
|
bulb |
|
STRUCTURE |
|
A thickened underground perennating structure consisting of a stem with numerous closely proximate nodes bearing many tightly imbricate, thickened, often fleshy, foliaceous organs containing large amounts of stored food, usually in the form of starch; the whole usually enveloped and protected by imbricated scarious or fibrous foliaceous organs. |
|
bud-scale scar |
|
FEATURE |
|
A scar on a stem due to abscission of a bud scale. The scar(s) encircle(s) the axis to which the bud was terminal, each single scar having an outline like that of a transverse section through the base of the bud scale that was inserted there. Sets of bud scale scars (one set per bud) usually delimit seasonal stem growth increments in temperate zone taxa. |
|
bud scale |
|
STRUCTURE |
|
A scale that, alone or aggregated with others, envelops and protects a bud. |
|
bud |
|
STRUCTURE |
|
A rudimentary, unexpanded stem, stem branch, inflorescence, inflorescence branch, or flower, or a combination thereof, in a resting state; enveloped or not by subtending protective scales. |
|
buckler-shaped |
= scutate, scutiform |
solid shape |
|
Relatively thin with opposite broad oblong faces, planate to shallowly concave-convex, sometimes thickened about the periphery such that each face has a marginal rim; like an oblong shield. See also platter-shaped (scutellate, scutelliform), which is not clearly distinct in its application. |
|
broom-shaped |
= muscariform, penicillate |
solid shape |
|
Having a proximal axis that bears a distal cluster of elongate slender branches or appendages, these variously ascending to erect; like a broom. |
|
brochidodromous |
|
venation |
|
Having a single median primary vein that branches to either side along its length, the secondary veins incurving strongly near but short of the margin, interconnecting serially, and forming a succession of marginal loops. |
|
brittle |
= friable |
texture |
|
Dry, firm and easily broken. |
