Cov txheej txheem:

Dab tsi yog tsob ntoo Douglas fir?
Dab tsi yog tsob ntoo Douglas fir?

Video: Dab tsi yog tsob ntoo Douglas fir?

Video: Dab tsi yog tsob ntoo Douglas fir?
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Douglas fir, (genus Pseudotsuga ), genus ntawm txog rau hom ntoo ntsuab ntawm tsev neeg conifer Pinaceae , ib txwm nyob rau sab hnub poob North America thiab sab hnub tuaj Asia. Cov ntoo yog cov ntoo tseem ceeb, thiab cov ntoo muaj zog yog siv hauv nkoj, dav hlau, thiab kev tsim kho.

Ua li no, hom ntoo twg yog Douglas fir?

Douglas Fir, qhov tseeb, yog hom ntoo tshwj xeeb pom muaj nyob hauv Pacific Northwest. Nws yog dav paub tias yog fir tab sis zoo li a ntoo tsob ntoo. Nws yog hom ntoo uas nrov tshaj plaws thiab feem ntau pom muaj nyob hauv North America.

Tom qab, lo lus nug yog, hom ntoo twg yog fir? Firs ( Abies ) yog ib tug genus ntawm 48-56 hom ntawm evergreen coniferous ntoo nyob rau hauv tsev neeg Pinaceae . Lawv pom nyob rau hauv ntau ntawm North thiab Central America, Europe, Asia, thiab North Africa, tshwm sim nyob rau hauv toj siab ntawm ntau yam. Firs feem ntau cuam tshuam nrog lub genus Cedrus ( cedar ).

Kuj paub, koj qhia li cas yog tsob ntoo yog Douglas fir?

Qhov twg: Hauv qab 5000 ft

  1. Koob: Douglas Fir yog ib qho yooj yim los txheeb xyuas.
  2. Cones: Cov cones yog tib qho uas koj yuav pom nyob rau hauv Northwest nrog peb-taw bracts lo tawm ntawm cov nplai.
  3. Bark: Feem ntau koj tuaj yeem txheeb xyuas Douglas Fir loj los ntawm cov tawv ntoo ib leeg.

Vim li cas Douglas fir tsis yog qhov tseeb tiag?

Nyob rau hauv 1867, vim hais tias ntawm nws cov cones txawv, nws tau muab nws tus kheej genus - Pseudotsuga - uas txhais tau hais tias dag hemlock. Lub hyphen nyob rau hauv lub npe nrov cia peb paub qhov ntawd Douglas - fir yog tsis yog "true " fir -- yog li tsis yog ib tug tswv cuab ntawm Abies genus. Nws lub npe zoo ib yam li cov genus, uas qhia txog nws qhov tseem ceeb.

Pom zoo: