Acuminate

Gradually tapering to a long point.

Acute

Tapering to a point, but not long-pointed; terminating with a well-defined or sharp angle. Adnate. (Of stipules) Attached wholly or in part to the base of the petiole. Alternate, (of leaves) Occurring one at each node, scattered singly along the stem. Annular. In the form of a ring; said of leaf scars which encircle the bud, or of bundle scars which are circular with an opening in the center. Apiculate. Ending in a short, pointed tip.

Apophysis

The exposed portion of the cone scale of a conifer. Appressed. (Of pubescence) Lying close or flat against the blade or petiole; (of buds) lying flat against the stem. Arachnoid. Cobweb-like.

Arborescent

Tree-like in appearance, size and growth. Armed. Bearing thorns, spines, or prickles. Aromatic. Fragrant, having an agreeable smell or taste. Ascending. Arising somewhat obliquely, or curving upwards. Auriculate. With basal lobes.

Awl-Shaped

Tapering from the base to a slender or rigid point. Awn. A long stiff hair or hair-like point.

Axil

The upper angle formed by a leaf or branch with the stem. Axillary. Situated in an axil. Axis. The central line of support, as a stem. Berry. A juicy or fleshy fruit in which the seeds are embedded in the pulp. Biennial. A plant in which growth begins in the spring, summer, or autumn of one growing season, and flowering and death occur the following year. Bipinnate. Twice-pinnate. Bipinnatifid. Twice-pinnatifid. Biternate. Twice-ternate. Blade. The flat, expanded part of a leaf.

Bloom

A powdery or somewhat waxy substance easily rubbed off. Bract. A small leaf-life appendage below a flower or a flower cluster. Bud. A rudimentary branch, during winter in the resting stage.

Scaly buds are protected by modified leaves or stipules (scales), while Naked buds lack this protection. Bulb. An underground bud with fleshy scales and a short axis. Bundle scars. Small dots or lines on the surface of the leaf scar; they are the scars of the conducting strands that served the leaf. Bundle traces. Same as bundle scars.

Callose

With a small, hard protuberance.

Calyx

The outer portion of a flower which sometimes persists.

Caespitose

Growing in compact tufts.

Cane

The long shoots of certain shrubs, as the raspberries, blackberries, etc. Capsule. A dry fruit of two or more carpels, usually splitting into valves at maturity. Carpel. The part of the flower or fruit which actually bears the seeds. Catkin. An elongated scaly cluster of flowers. Chambered. Said of pith when divided into small compartments separated by transverse partitions. Channelled. Deeply grooved longitudinally. Ciliate. With marginal hairs, especially if the hairs are in definite lines. Ciliolate. Minutely ciliate, but visible with the unaided eye. Clasping. (Of the base of a petiole) Partly or wholly surrounding the stem. Cleft. Lobed with the sinuses extending about half way to the midvein. Collateral. Said of extra buds which occur on either side of an axillary bud. Cone. The reproductive structure of gymnosperms, consisting of an axis to which are attached many woody, overlapping scales which bear seeds. Confluent. (Of leaflets) More or less united along the midvein. Connate. (Of leaves) More or less united at the bases of the petioles. Continuous. Said of pith which is solid, not interrupted by cavities. Compound leaf. A leaf in which the blade consists of two or more separate leaflets. Cordate. (Of the base of a leaf) With two, usually rounded,lobes and a sinus; (of a leaf) heart-shaped. Coriaceous. Leathery in texture.

Corm

The enlarged, fleshy, solid base of a stem (underground). Corymb. A flat-topped or convex flower cluster, the outer flowers opening first. Cotyledons. The first leaf or pair of leaves in the embryo which may be expanded and persistent in certain biennials. Creeping. Running along at or near the surface of the ground and rooting. Crenate. With rounded teeth; scallop-toothed. Crenulate. Finely crenate, the teeth small and shallow. Crisped. (Of margins) Puckered, ruffled. Cuneate. (Of the base of a blade) Like the acute angle of a wedge, the narrow end pointing toward the base; (of a blade or leaf) triangular, with the acute angle downward.

Deciduous

Falling off, usually at the end of the season.

Decompound

More than once-compound, the primary divisions divided at least once again.

Decumbent

Stems or branches reclining, but the ends ascending.

Decurrent

Continued down the twig in a ridge or wing, as applied to leaf-bases.

Deltoid

Shaped like the Greek letter ∆.

Dentate

Toothed, with the teeth pointing outward.

Denticulate

Finely dentate, the teeth small and shallow.

Depressed

Somewhat flattened from above.

Diaphragmed

Said of pith which is solid with transverse bars of denser tissue at short intervals.

Digitately compound. Leaflets diverging, like the fingers spread.

Dilated

(Of the bases of a petiole) Conspicuously broadened, the broadened part usually much thinner, at least near the margins.

Dissected

Cut or divided into numerous narrow segments.

Distinct

Separate; (of leaf segments or leaflets) not confluent with other segments or leaflets by a winged rachis or mid-vein.

Divergent

Extending out. Said of buds which point away from the twigs.

Divided

Cleft to the base or to the midvein.

Ellipsoid

An elliptical solid.

Elliptic

With the outline of an ellipse.

Emarginate

With a notch at the tip.

Entire

Without divisions, lobes, or teeth.

Epidermis

The outer layer or covering of plants.

Evergreen

Not falling at end of growing season, having green leaves in winter.