GardenWeb Glossary of Botanical Terms <http://glossary.gardenweb.com/glossary/>
– Describes leaves that are not opposite to each other on the axis, but arranged singly at different heights.
– Lying close and flat against, as a bud against a twig.
– The rudimentary state of a stem or branch; an unexpanded flower.
– The outer part (perianth) of the flower, usually green and formed of several divisions called sepals, that protects the bud.
– A compact and often drooping cluster of reduced, stalkless, and usually unisexual flowers; an ament.
– Marginally fringed with hairs (cilia).
– Not interrupted.
– flat-topped or convex open flower cluster, the outer flowers opening first. In the stricter use of the word, equivalent to a contracted raceme and progressing in its flowering from the margin inward.
– 1. Not persistent. 2. A tree losing its leaves at the end of the growing season; nonevergreen.
– Covered with fine hairs.
– Without toothing or division.
– Cleaving off in thin layers.
– 1. The mature ovary of a seed plant. 2. Sporangia; often applied to the sporophyte.
– structure that produces fruits (e.g., a catkin)
– Somewhat glabrous, or becoming glabrous.
– Smooth; not rough, pubescent, or hairy.
– Bearing glands or of the nature of a gland.
– Bluish white; covered or whitened with a very fine, powdery substance.
– See internode.
– The portion of a stem between two nodes. (Also see node.)
– Composed of or arranged in layers or thin plates; having lamellae. (Also: lamellose.)
– A corky spot on the surfaces of twigs through which gases are exchanged between the atmosphere and the underlying tissues. The spot sometimes persists on the barks of branches.
– An edge of a flat structure, such as a leaf.
– Describes a bud which lacks bud scales.
– See node.
– The place upon a stem which normally bears a leaf or whorl of leaves. (Also see internode.)
– A solid with an oval outline.
– A primary flower stalk, supporting either a cluster or a solitary flower.
– Lasting beyond maturity without being shed, as some leaves remaining through winter, etc.
– The stalk of a leaf that attaches to the stem.
– The stalk of a leaflet.
– The spongy or hollow center of twig or some stems.
– A small, sharp outgrowth involving only the outer epidermal layer, usually more slender than a thorn. This is the correct term for rose thorns.
– Lying flat upon the ground.
– Minutely pubescent. (Also: puberulose, puberulent or puberulous.)
– Covered with hairs, especially if short, soft, and down-like.
– Curved downward or backward
; with ray florets curved backward along their length toward the stem.
– Abruptly bent or turned downward.
– Curled under; rolled.
– A thin, membrane-like covering of the bud or twig base.
– Tiny, somewhat circular dots within the leaf scar, caused by the breaking of the fibrovascular bundles which run through the petioles into the blades of the leaves.
– The mark left on the twig at the point of attachment of a leafstalk when the leaf falls.
– The mark left on the twig at the point of attachment of a stipule when the leaf falls (and associated with the leaf scar).
– A leaf without a petiole; sessile.
– A sharp woody or rigid outgrowth from a stem, leaf, or other plant part.
– Densely pubescent with matted wool.
Lacking thorns, prickles, etc.
Winter Tree & Shrub Key
> (from the WTU [University of Washington] Image Collection)