Ob leeg fir thiab spruce yog conifers. Tab sis yuav ua li cas lawv sib txawv los ntawm txhua lwm yam, ob peb cov neeg twv teb. Spruce tuaj yeem nkag siab yooj yim nrog fir thaum saib los ntawm afar, vim hais tias hauv qhov tsos lawv zoo sib xws heev. Tab sis yog tias koj saib ze ze, qhov sib txawv tsis nyuaj rau pom.
Cov Lus Qhia
Kauj ruam 1
Koob
Fir nws tus kheej yog qhov muag ntoo. Fir koob zoo ib yam li nplooj nqaim nplooj ntau dua li rab koob, uas tsis tuaj yeem hais txog spruce. Cov koob spruce tau muaj qhov chaw, thaum fir koob muaj nqis ntxiv rau ntawm qhov chaw. Yog li ntawd, fir koob tsis yog thorny, tab sis muag muag thiab nplaim muag.
Nyob rau sab hauv qab ntawm rab koob koob xav tau, ob txoj hlua ntsej muag tuaj yeem pom, tsim kom muaj cov nyhuv ua kom zoo ntxiv. Muaj ntau ntau stomata rau lawv. Fir koob muaj nyob rau ntawm cov ceg ib los ntawm ib qho thiab nyob ntev dua li spruce ib qho - txog 10-12 xyoos.
Kauj ruam 2
Cones
Lub spruce cones dai, thiab fir cones yog qhia ncaj qha mus lawm. Lawv nyob ntawm cov ceg ntawm ib tsob ntoo tsa sawv, zoo li cov tswm ciab. Thaum lub khob hliav qab ua tiav, nws ntog ua tej qho me me, thiab cov nplai nrog cov noob poob rau hauv av. Ib tug nyias, ntse pas sticking upward tseem nyob ntawm tsob ntoo. Hauv cov tshuaj spruce, lub khob hliav qab tsuas nthuav tawm cov nplai.
Kauj ruam 3
Tawb
Cov tawv ntoo ntawm fir yog kiag li tus. Tsis muaj kev tawg nyob saum nws. Lub pob tw nws tus kheej yog nqaim thiab zoo kawg nkaus ncaj. Lub spruce muaj pob tw ntxhib. Cov xim ntawm fir xyoob yog lub teeb greyish. Cov tawv ntoo ntawm cov ntoo yog qhov nyias nyias, tau sau nrog cov ntoo, thiab cov ceg uas tuaj yeem nqa hauv paus yog tsawg. Fir yog qhov txawv ntawm spruce los ntawm nws cov ntoo tshauv ntsuab-grey.
Kauj ruam 4
Noob
Fir noob muaj tis, uas nyob rau hauv tsos yog yuav luag tib yam li cov ntawm spruce. Tab sis txawm tias ntawm no muaj qhov sib txawv: cov noob fir loj hlob ua ke nrog tis, nruj nreem txuas nrog nws. Hauv spruce, tis tau yooj yim sib cais los ntawm cov noob thiab tawg.
