3.0.1.0 / May 29, 2012
(4.2/5) (6)

Description

The species of Taraxacum aretap-rootedbiennial or perennial herbaceous plants, native totemperate areasof the Old and New worlds.[clarification needed]

The leaves are 5–25 cm long or longer, simple and basal,entireor lobed, forming a rosette above the central taproot. Theflowerheads are yellow to orange coloured, and are open in thedaytimebut closed at night. The heads are borne singly on a hollowstem(scape) that rises 1–10 cm or more[4] above the leaves andexudes amilky sap (latex) when broken. A rosette may produceseveralflowering stems at a time. The flower heads are 2–5 cm indiameterand consist entirely of ray florets. The flower headsmature intospherical "clocks"[5] containing many single-seededfruits calledachenes. Each achene is attached to a pappus of finehairs, whichenable wind-aided dispersal over long distances.

The flower head is surrounded by bracts (sometimesmistakenlycalled sepals) in two series. The inner bracts are erectuntil theseeds mature, then flex downward to allow the seeds todisperse;the outer bracts are always reflexed downward. Somespecies dropthe "parachute" from the achenes; the hair-likeparachutes arecalled pappus, and they are modified sepals. Betweenthe pappus andthe achene, there is a stalk called a beak, whichelongates as thefruit matures. The beak breaks off from the achenequite easily,separating the seed from the parachute.

App Information Nature Puzzle: Taraxacum

  • App Name
    Nature Puzzle: Taraxacum
  • Package Name
    com.saubcy.games.puzzle.Nature.Taraxacum.gm
  • Updated
    May 29, 2012
  • File Size
    5.5M
  • Requires Android
    Android 1.6 and up
  • Version
    3.0.1.0
  • Developer
    chenyong
  • Installs
    500 - 1,000
  • Price
    Free
  • Category
    Casual
  • Developer
  • Google Play Link

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