Duration (V.C) Flashcards
Duration Type:
Annual
plants that live, reproduce, and die in one growing season.
Duration Type:
Perennial
The term “perennial” refers to herbaceous (“green”) plants since woody plants, such as trees, are perennial by definition.
Can be Herbaceous or Woody
Duration Type:
Biennial
plants that need two growing seasons to complete their life cycle, normally completing vegetative growth the first year and flowering the second year.
Leaf Parts:
Blade (lamina)
the flat part of a leaf; the blade, which is the widest part of the leaf

Leaf Parts:
Midrib
Most leaves have a midrib, which travels the length of the leaf and branches to each side to produce veins of vascular tissue.

Leaf Parts:
Rachis
the main axis of a compound structure. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle.

Leaf Parts:
Margin
The leaf margin is the boundary area extending along the edge of the leaf.
main part of the leaf, usually large and flat

Leaf Part:
Petiole
The petiole is the stalk that supports a leaf in a plant and attaches it to the stem.

Leaf Parts:
Sessile
sessile refers to leaves that are directly attached to the plant’s base. These leaves do not depend on any stalks and are borne directly from the plant’s stem since they do not have a petiole.

Leaf Parts:
Petiolate
having a stalk or petiole.

Leaf Parts:
Stipules
a small leaflike paired appendage to a leaf, typically borne in pairs at the base of the leaf stalk.

Leaf Parts:
Stipulate
(Adj.) Furnished with stipules; as, a stipulate leaf.

Leaf Parts:
Leaf axil
the angle between the upper side of the stem and a leaf, branch, or petiole.

Leaf Parts:
Leaflet
each of the leaflike structures that together make up a compound leaf

Habit:
Acaulescent
adj (of plants) having no apparent stem above ground, no visible stem
ex. (succulents)
Habit:
Caulescent
having a well-developed stem above ground.
Habit:
Herbaceous
lacking wood; having the characters of a herb
Habit:
Woody
having a hard thickened, vascular tissue (xylem) thats develops in trees, shrubs, and vines
Habit:
Scapose
pertaining to a plant or an inflorescence having a realtively long peduncle that arises from ground level, often a rossete, somtimes bearing bracts but w/o lvs
Habit:
Succulent
plants that have some parts that are more than normally thickened and fleshy, usually to retain water in arid climates or soil conditions. The word “succulent” comes from the Latin word sucus, meaningjuice, or sap.
Root Systems:
Fibrous
having a fibrous root system composed of many roots similar in length and thickness, as in grasses (opposite of taproot).

Root Systems:
Tap Roots
Tapered root that generally grows staright down into soil and has smaller, later branches.

Root Systems:
Adventitous Root
Arising at unusal times or places,arise from an organ other than the root-usually stem, or leaf. Said of plant structures such as roots on aerial stems

Shoot Modifications:
Rhizome
Underground, often elongate, more or less horizontal stem. Distinguished from root by presebce of leaves, leaf scars, scales, buds, etc.




































































































































