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Plant Organs (Leaves - absorb sunlight for photosynthesis (manufacture of…

- - - - blade - expanded thin structure ; most prominent part of leaf
      - petiole - stalk
      - stipule - small appendages at base of petiole. Usually in pairs and soon shed.
    - - leaflet - Small leaflike structure. Several leaflets make up a compound leaf
      - petiole
      - rachis - takes place of midrib ins a simple leaf
- - - - spurs - short, stubby side stems from main stem. Common on fruit bearing trees (where fruit will grow).
      - thorns - can be single (cockspur hawthorn), branched (honeylocust), or modified leaves (cactus)
      - crowns - compressed stems having leaves and flowers on short internodes (strawberries, dandelions, African violets)
      - stolons - horizontal fleshy or woody stems that lie along the top of the ground (strawberry runners, bermudagrass)
    - - tubers - thickened, fleshy underground stems (potatoes - eyes are actually nodes with a cluster of buds))
      - bulbs - tulips, lilies, daffodils, onions
      - rhizomes - similar to stolons, generally grow underground rather than above it
      - corms - solid, swollen stems with dry, scale-like leaves on the outside (gladiolus). Shaped somewhat like a bulb without fleshy scales
- - - - sepals (collectivelly called the calyx) - small, leaflike structures at base of flower that protect flower bud. Highly colored are called tepals (daylily).
      - petals (corolla) - May contain fragrant oils or nectar glands.