Search results for:  head
 

Number of matches:  37

head 1. A dense cluster of sessile or nearly sessile flowers on a very short axis or receptacle; heart-shaped. 2. Ovate with two rounded lobes and a sinus at the base; commonly used to define such a base. 3. The number of animals, e.g., 40 horses, that would be counted by a farmer/rancher as 40 head of horses, or merely 40 head.

head back To cut back the main branches of a woody plant severely.

heading back Cutting a branch back to a bud or side branch to increase the number of shoots, making the plant thicker and bushier.

agglomerate Together in a head, as the florets of red clover, Trifolium pratense; clustered.

axe A waist-high tool with a vertical, sharpened, narrow wedge head for cutting wood.

beach pool The barrier beach pool is a shallow lagoon formed inland from the barrier beach. 2. A sand spit beach pool is a shallow lagoon, generally S-shaped, that is inland from a sand spit, most often on the protected side of a headland.

capitate (syn. capitiform, alt. capitose) 1. Shaped like a head; collected into a head or dense cluster. 2. Terminated by a bulbous, swollen area.

capitellate 1. Shaped like a tiny head. 2. Clustered in a compact headlike grouping.

cephalanthium The flower head of a Compositae species.

composite Member of the family Compositae, having compound flower heads, e.g., the daisy, the aster, the sunflower, etc. See also: compound flower head.

compound flower head (alt. composite flower head) A flower head with outer ray flowers forming "petals" surrounding the inner disc flowers, as in the Compositae.

disc floret One of the small tubular, actinomorphic florets which make up the central part of the flower head in Compositae, each with a pistil and stamens but generally no other conspicuous flower parts. See also: ray floret.

discoid (adj. discoidal) 1. Resembling a disk. 2. In Compositae, a flower head without ray flowers, having disk flowers only.

disk flower (alt. disc flower) In Compositae, the tubular flowers of the head, as distinct from the ray.

flower head A group of florets.

fully double Flower heads with multiple rows of ray florets; the disc florets are immature and completely covered by the central rays when the flower is at its prime stage.

hastate (syn. halberd-shaped) Like an arrow-head, but with the basal lobes pointing outward nearly at right angles.

incurved Bent or curved inwards or upwards, as leaf margins curved towards the adaxial surface; describing ray florets curved forward along their length toward the face of the flower head.

involucre A circle or collection of bracts surrounding a flower cluster or head, or a single flower.

lanceolate Shaped like a lance-head, several times longer than wide, broadest above the base and narrowed to the apex.

mattock A waist-high tool with a metal head consisting of a horizontal blade with one end twisted as a dull axe and the other end flat or pointed. It is used for breaking hard soil, digging roots, and other heavy work.

mimosiform (alt. mimosoid) With round or conical flower heads having inconspicuous sepals and petals but conspicuous stamens, as found in the genus Mimosa.

monocephallic (alt. monocephalous) Bearing a single flower head.

monocephallous Having a single flower head.

multicipital Many-headed.

neve Granular compacted snow at the head of a glacier, or similar snow elsewhere. See also: firn.

phyllary One of the bracts under the flower head of a plant, especially in Compositae.

pocket beach The shore at a bay head where wave energy is lowest and settlings highest, often with fringe wetlands.

pompon A small globular flower or flower head.

poultice Moist, usually hot, mass of plant material; wrapped in a cloth and applied to the skin to bring about some desired action, such as bringing a boil to a head.

radius (pl. radii) 1. The outermost flowers in a daisy-like head, Compositae; ray flowers as opposed to disc flowers. 2. The distance from the center of a circle to the outer edge, as from the heart of a tree to the bark.

ray flower The bilaterally symmetrical flowers around the edge of the head in many members of Compositae; each ray flower resembles a single petal.

ray floret One of the broad, conspicuously colored florets of a compound flower, the structure of which suggests a single petal of an ordinary flower. These form the radiating border in the open-centered type dahlias, or massed together, the flower head in fully double types. See also: disc floret.

receptacle 1. The more or less expanded or produced portion of an axis which bears the organs of a flower (the torus) or the collected flowers of a head, and in roses, enfolds the developing ovaries to form a hip. 2. Any similar structure in cryptogams.

sagittate Shaped like an arrow-head, the basal lobes directed downward.

splitting maul An axe with a broad, heavy head, shaped into a wide nonstick wedge.

wetland An area where saturation or repeated inundation of water is the determining factor in the nature of the soils, as well as the plants and animals living there. Included in the term are marshes, swamps, bogs, fens, bay heads, wet meadows, potholes, sloughs, bayous, river flood plains, estuaries, and lake margins.

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Notes:

• This is version: 2.1     Last updated: February 4, 2002.

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