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achene - A one-seeded, dry fruit that does not split open when mature, with the seed coat not attached to the mature wall of the ovary.
alternate - Leaves occuring at successively different intervals on opposite sides of the stem.
anther - Pollen-bearing part of stamen.
axil - Angle between a stem and the attached leaf.
basal - From base of plant.
berry - Fruit with the seeds surrounded by fleshy material.
bog - A wet, acidic, nutrient-poor peatland characterized by sphagnum and other mosses, shrubs and sedges. Technically, a type of peatland raised above its surroundings by peat accumulation and receiving nutrients only from precipitation.
bract - An accessory structure at the base of some flowers, usually appearing leaflike.
bristle - A stiff hair.
calyx - Collectively, all the sepals of a flower.
capsule - A dry fruit that splits into three or more parts at maturity.
catkin - Spikelike inflorescence of same-sexed flowers (either male or female).
clasping - Leaves that partially encircle the stem at the base.
compund - A leaf with two or more leaflets.
cone - The dry fruit of conifers composed of overlapping scales.
corolla - Collectively, all the petals of a flower.
end bud - The bud that grows at the precise end of the twig. False end buds occur in some species when the end bud is shed and a nearby side bud acts as end bud.
evergreen - Having foliage that remains green and functional throughout the year.
floodplain - Level land that is occasionally covered by flood waters.
frond- A leaflike expansion not differentiated into stem and foliage, as in lichens
gland - An appendage or depression which produces a sticky or greasy substance.
lenticel - Blisterlike openings in the epidermis of woody stems, admitting gases to and from the plant, and often appearing as small oval dots on bark.
lobe - Rounded divisions in leaves usually not halfway to the midrib.
margin - The outer edge of a leaf.
marsh - Wetland dominated by herbaceous plant communities, typically dominated by grasses.
nutlet - A small dry fruit that does not split open along a seam.
oblong - Broadest at the middle, and tapering at both ends, but broader than elliptic.
opposite - Leaves or branches which are paired opposite one another on the stem.
ovate - Broadly rounded at the base becoming narrowed above.
palmate - Divided in a radial fashion, like the fingers of a hand.
perfect -Having both male and female parts.
petal - One of the modified, often brightly colored leaves of the corolla of a flower.
pinnate - Divided once along an elongated axis into distinct segments.
pulvinus - a swelling at the base of a petiole.
raceme - A grouping of flowers along an elongated axis where each flower has its own stalk.
rosette - A crowded, circular clump of leaves.
salt-marsh - Flat land subject to overflow by salt water.
sepal - One of the modified leaves comprising a calyx; usually green in color.
sheath - Tube-shaped membrane around a stem, especially for part of the leaf in grasses and sedges.
sinus - The depression between two lobes.
spore - A reproductive body produced by plants, fungi, and some microorganisms capable of developing into a new individual either directly or after fusion with another spore.
spur - A hollow, pointed projection of a flower.
stipule - A leaflike outgrowth at the base of a leaf stalk.
swamp - Wooded wetlands dominated by trees or shrubs; soils are typically wet for much of the year or sometimes inundated.
utricle - A small, one-seeded fruit with a dry, papery outer covering.
whorl - A group of three or more parts from one point on a stem.
wing - A thin tissue bordering or surrounding an organ.
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