View source for Thuja ← Thuja You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Thuja |accepted_authority=Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=2: 1002. 1753; Gen. Pl. ed. 5, 435, 1754 |year=1754 }} |common_names=Arborvitae;thuya;cèdre |basionyms= |synonyms= |hierarchy=Cupressaceae;Thuja |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cupressaceae]]</div><div class="higher-taxon"><small>genus</small>[[Thuja]]</div></div> |etymology=Greek name for some evergreen, resinous trees |volume=Volume 2 |mention_page= |treatment_page= }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism size;whole_organism growth form"><b>Trees </b>evergreen, small to large.</span> <span class="statement" id="st-d0_s1" data-properties="branchlet shape;spray shape;spray shape;spray shape"><b>Branchlets </b>flattened, in fan-shaped, flattened, frondlike sprays.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement;rank quantity"><b>Leaves </b>opposite in 4 ranks.</span> <span class="statement" id="st-d0_s3" data-properties=""><b>Adult </b>leaves heteromorphic;</span> <span class="statement" id="st-d0_s4" data-properties="apex shape;apex orientation;apex fusion;apex some measurement">those on larger branchlets with sharp, erect, free apices to ca. 2 mm;</span> <span class="statement" id="st-d0_s5" data-properties="leaf life cycle;leaf architecture;leaf shape;leaf structure subtype;leaf prominence or shape;lateral branchlet shape;lateral branchlet arrangement;lateral branchlet fixation or orientation;lateral branchlet shape;lateral branchlet position">those on flattened lateral branchlets crowded, appressed, scalelike, lateral pairs keeled, facial pairs flat;</span> <span class="statement" id="st-d0_s6" data-properties="abaxial gland presence;abaxial gland presence">abaxial glands present or absent.</span> <span class="statement" id="st-d0_s7" data-properties="pair quantity;pollen-sac quantity"><b>Pollen </b>cones with 2–6 pairs of sporophylls, each sporophyll with 2–4 pollen-sacs.</span> <span class="statement" id="st-d0_s8" data-properties="seed-cone life cycle"><b>Seed-</b>cones maturing and opening first-year, ellipsoid, (6–) 9–14 (–18) mm;</span> <span class="statement" id="st-d0_s9" data-properties="scale duration;scale quantity;scale arrangement;scale shape;scale fixation;scale width;scale texture;scale quantity;scale position;scale reproduction;scale width;scale width;scale reproduction;apex size">scales persistent, 4–6 pairs, overlapping, oblong and basifixed, thin and woody, 2–3 central pairs fertile, uniformly thin or with slightly enlarged apex, remaining scales sterile.</span> <span class="statement" id="st-d0_s10" data-properties="seed quantity;seed shape;seed architecture"><b>Seeds </b>1–3 per scale, lenticular, equally 2-winged;</span> <span class="statement" id="st-d0_s11" data-properties="">cotyledons 2.</span> <span class="statement" id="st-d0_s12" data-properties="cotyledon quantity;x chromosome quantity">x = 11.</span><!-- -->{{Treatment/Body |distribution=North America;e Asia |discussion=<p>Two Asiatic species, Thuja koraiensis Nakai (Korean arborvitae) and T. standishii (Gordon) Carrière (Japanese arborvitae), are occasional in cultivation. They differ from the native species in having more closely spaced long-shoot leaves with shorter, spreading points.</p><!-- --><p>Species 5 (2 in the flora).</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Foliage dull yellowish green abaxially and adaxially; seed-cone scales minutely mucronate; e United States and e Canada. |[[Thuja occidentalis|Thuja occidentalis]] |-id=key-0-1 |1 |Foliage white-striped abaxially when fresh, glossy green adaxially; seed-cone scales with evident, nearly terminal, deltate projection; w United States and w Canada. |[[Thuja plicata|Thuja plicata]] |} </div></div><!-- -->{{#Taxon: name=Thuja |author=Kenton L. Chambers |authority=Linnaeus |rank=genus |parent rank=family |synonyms= |basionyms= |family=Cupressaceae |distribution=North America;e Asia |reference=None |publication title=Sp. Pl. |publication year=1754 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V2/V2_793.xml |genus=Thuja |abaxial gland presence=absent;absent |apex fusion=free |apex orientation=erect |apex shape=sharp |apex size=enlarged |apex some measurement=0mm;2mm |branchlet shape=flattened |cotyledon quantity=2 |lateral branchlet arrangement=crowded |lateral branchlet fixation or orientation=appressed |lateral branchlet position=lateral |lateral branchlet shape=scale-like;flattened |leaf architecture=heteromorphic |leaf arrangement=opposite |leaf life cycle=adult |leaf prominence or shape=flat |leaf shape=keeled |leaf structure subtype=facial |pair quantity=2;6 |pollen-sac quantity=2;4 |rank quantity=4 |scale arrangement=overlapping |scale duration=persistent |scale fixation=basifixed |scale position=central |scale quantity=2;3 |scale reproduction=sterile;fertile |scale shape=oblong |scale texture=woody |scale width=with slightly enlarged apex;thin;thin |seed architecture=2-winged |seed quantity=1;3 |seed shape=lenticular |seed-cone life cycle=maturing |spray shape=frondlike;flattened;fan--shaped |whole_organism duration=evergreen |whole_organism growth form=tree |whole_organism size=small;large |x chromosome quantity=11 }}<!-- -->[[Category:Treatment]][[Category:Cupressaceae]] Templates used on this page: Template:Cupressaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Thuja.