Plant Ontology (PO)

Name: Plant Ontology (PO)
Published: 2026-11-13T13:43:55.915259Z

Selected English labels and exact synonyms from the Plant Ontology (PO), release 2026-01-09, with source identifiers and spelling preserved. Licensed CC BY 4.0; full attribution is listed under Sources. Under semantic review; not endorsed by the ontology's maintainers.

Curator: Chloe Harris

Languages shown reflect this page; source translations may cover only some concepts.

English
BO.03 late boot stageUnrated
epidermis adaxial de la vaina de la hoja (Spanish, exact)Unrated leaf sheath adaxial epidermisUnrated 葉鞘向軸側表皮 (Japanese, exact)Unrated
primary leaf veinUnrated vena primaria de la hoja (Spanish, exact)Unrated 一次葉脈 (Japanese, exact)Unrated
etapa latente de la semilla (Spanish, exact)Unrated seed dormant stageUnrated 種子休眠期 (Japanese, exact)Unrated
2.05 main shoot and axillary shoots visible at five nodes stageUnrated
gluma superior de la espiguilla pedicelada de la espiga (Spanish, exact)Unrated upper glume of pedicellate spikelet of earUnrated 雌穂（花）の有柄小穂の第二苞頴(second glume) (Japanese, exact)Unrated
resin cellUnrated
portion of secondary xylem tissue (exact)Unrated secondary xylemUnrated wood (exact)Unrated xilema secundario (Spanish, exact)Unrated 二次木部 (Japanese, exact)Unrated
c&#233lula parenquim&#225tica de rayo de la madera (Spanish, exact)Unrated ray secondary xylem parenchyma cellUnrated ray wood parenchyma cell (exact)Unrated 放射状二次木部柔組織細胞 (Japanese, exact)Unrated
c&#233lula del tapete (Spanish, exact)Unrated tapetal cell (exact)Unrated tapetum cellUnrated タペート細胞 (Japanese, exact)Unrated
terminal reproductive budUnrated yema terminal reproductiva (Spanish, exact)Unrated 生殖型頂芽 (Japanese, exact)Unrated
cavidad subestom&#225tica (Spanish, exact)Unrated substomatal cavityUnrated 気孔下腔、呼吸腔 (Japanese, exact)Unrated
complejo estom&#225tico de la superficie adaxial de la hoja (Spanish, exact)Unrated leaf adaxial epidermal stomatal complex (exact)Unrated leaf adaxial epidermis stomatal complex (exact)Unrated leaf adaxial stomatal complexUnrated 葉向軸側気孔装置 (Japanese, exact)Unrated
quaternary leaf veinUnrated vena cuaternaria (Spanish, exact)Unrated 四次葉脈 (Japanese, exact)Unrated
cole&#243ptile de la pl&#225ntula (Spanish, exact)Unrated seedling coleoptileUnrated 実生幼葉鞘 (Japanese, exact)Unrated
SE.10 ten nodes or internodes visible stageUnrated
par&#233nquima de reserva de tub&#233rculo (Spanish, exact)Unrated tuber flesh (exact)Unrated tuber storage parenchymaUnrated 塊茎貯蔵柔組織 (Japanese, exact)Unrated
rachilla of pedicellate spikelet of earUnrated raquilla de la espiguilla pedicelada de la espiga (Spanish, exact)Unrated 雌穂（花）の有柄小穂の小軸 (Japanese, exact)Unrated
complejo estom&#225tico del pec&#237olo (Spanish, exact)Unrated petiole epidermal stomatal complex (exact)Unrated petiole epidermis stomatal complex (exact)Unrated petiole stomatal complexUnrated 葉柄気孔装置 (Japanese, exact)Unrated
SE.09 nine nodes or internodes visible stageUnrated
c&#233lula basal (Spanish, exact)Unrated embryo basal cellUnrated embryonic basal cell (exact)Unrated 胚基底細胞 (Japanese, exact)Unrated
meristema del penacho (borla) (Spanish, exact)Unrated tassel meristemUnrated 雄穂分裂組織 (Japanese, exact)Unrated
profilo (Spanish, exact)Unrated prophyllUnrated prophylla (exact, plural)Unrated prophylls (exact, plural)Unrated prophyllum (exact)Unrated 前葉、前出葉 (Japanese, exact)Unrated
epiblastUnrated epiblasto (Spanish, exact)Unrated 外胚葉 (Japanese, exact)Unrated
seedling development stageUnrated
gl&#225ndula aceitosa (Spanish, exact)Unrated oil glandUnrated 油胞、油腺 (Japanese, exact)Unrated
floral organ differentiation stageUnrated
arista de la palea (Spanish, exact)Unrated palea awnUnrated 内頴芒 (Japanese, exact)Unrated
savia del xilema (Spanish, exact)Unrated xylem sapUnrated 木質部樹液 (Japanese, exact)Unrated
c&#233lula apical del gamet&#243foro (Spanish, exact)Unrated gametophore apical cell (exact)Unrated gametophore apical initial (exact)Unrated gametophore meristematic apical cellUnrated 茎葉体分裂組織の頂端細胞 (Japanese, exact)Unrated
anther thecaUnrated anther thecae (exact, plural)Unrated teca (Spanish, exact)Unrated 葯 (Japanese, exact)Unrated
epiblasto (epiblastema) lateral de tub&#233rculo (Spanish, exact)Unrated tuber axillary shootUnrated 塊茎腋分げつ (Japanese, exact)Unrated
protoxilema exarco de la raiz (Spanish, exact) (exact)Unrated root system exarch protoxylemUnrated 根外原型原生木部 (Japanese, exact)Unrated
IE.00 inflorescence tip just visible above flag leaf sheath stageUnrated
trichomeUnrated tricoma (Spanish, exact)Unrated 毛茸、糸状体、毛 (Japanese, exact)Unrated
lateral leaf veinUnrated vena lateral (Spanish, exact)Unrated 側脈 (Japanese, exact)Unrated
areola de la l&#225mina (Spanish, exact)Unrated phyllome lamina areoleUnrated フィロム葉身網目隙 (Japanese, exact)Unrated
vegetative shoot systemUnrated
vascular leaf primordium polarity determination stageUnrated
fun&#237culo (Spanish, exact)Unrated funicleUnrated funiculi (exact, plural)Unrated 珠柄 (Japanese, exact)Unrated
c&#233lula ??? de la ra&#237z (Spanish, exact)Unrated root syncytium cellUnrated 根融合細胞 (Japanese, exact)Unrated
free ending vein (exact)Unrated free ending veinletUnrated freely ending vein (exact)Unrated 自由端細脈 (Japanese, exact)Unrated
c&#233lula apical de la seta (Spanish, exact)Unrated seta apical cell (exact)Unrated seta apical initial (exact)Unrated seta meristematic apical cellUnrated 柄分裂組織の頂端細胞 (Japanese, exact)Unrated
whole plant fruit formation stage 50 to 70%Unrated
c&#233lula latic&#237fera (Spanish, exact)Unrated laticifer cellUnrated 乳管細胞 (Japanese, exact)Unrated
cut&#237cula propia de la planta (Spanish, exact)Unrated plant cuticle properUnrated 植物クチクラproper (Japanese, exact)Unrated
etapa de desarrollo del talo reproductivo de la planta entera (Spanish, exact)Unrated thallus reproductive whole plant development stageUnrated 葉状体生殖生長期 (Japanese, exact)Unrated
gin&#243foro (Spanish, exact)Unrated gynophoreUnrated hypogynia (exact, plural)Unrated hypogynium (exact)Unrated 花被間柱、子房柄、雌蕊柄 (Japanese, exact)Unrated
anther wall tapetumUnrated pollen sac tapetum (exact)Unrated portion of anther wall tapetal tissue (exact)Unrated tapete (Spanish, exact)Unrated 葯壁タペート組織 (Japanese, exact)Unrated
fruit size up to 10% stageUnrated
aggregate fruitUnrated aggregate of fruit (exact)Unrated
embri&#243n adventicio (Spanish, exact)Unrated nucellar embryo (exact)Unrated nucellar plant embryoUnrated 珠心由来の不定胚 (Japanese, exact)Unrated
estereomo (Spanish, exact)Unrated stereomeUnrated 機械組織 (Japanese, exact)Unrated
rib zoneUnrated zona de costilla (Spanish, exact)Unrated 髄状帯 (Japanese, exact)Unrated
axila de la br&#225ctea (Spanish, exact)Unrated bract axilUnrated 苞腋 (Japanese, exact)Unrated
lemma primordia visible stageUnrated
SE.14 fourteen nodes or internodes visible stageUnrated
persistent sepalUnrated s&#233palo persistente (Spanish, exact)Unrated 宿存がく片 (Japanese, exact)Unrated
caliptra de la ra&#237z (Spanish, exact)Unrated root capUnrated rootcap (exact)Unrated 根冠（＝kalyptra) (Japanese, exact)Unrated
embri&#243n (Spanish, exact)Unrated plant embryoUnrated 植物胚 (Japanese, exact)Unrated
sepal trichomeUnrated tricoma de la epidermis del s&#233palo (Spanish, exact)Unrated がく片毛（毛茸、糸状体） (Japanese, exact)Unrated
cole&#243ptile del embri&#243n (Spanish, exact)Unrated embryonic coleoptile (exact)Unrated plant embryo coleoptileUnrated 胚子葉鞘、胚鞘葉 (Japanese, exact)Unrated
phyllome trichomeUnrated tricoma del filoma (Spanish, exact)Unrated フィロム毛（毛茸、糸状体） (Japanese, exact)Unrated
nectario (Spanish, exact)Unrated nectaryUnrated 蜜腺 (Japanese, exact)Unrated
2.03 main shoot and axillary shoots visible at three nodes stageUnrated
pneumatorhizaUnrated pneumatorhizae (exact, plural)Unrated 支持根から出る側根 (Japanese, exact)Unrated
hoja de transici&#243n (Spanish, exact)Unrated transition vascular leafUnrated 維管束植物の幼葉と成熟葉の移行期の葉 (Japanese, exact)Unrated
flor del rayo (Spanish, exact)Unrated ray floret (exact)Unrated ray flowerUnrated 舌状花 (Japanese, exact)Unrated
axillary hair basal cellUnrated axillary hair base cell (exact)Unrated c&#233lula basal del pelo axilar (Spanish, exact)Unrated 腋毛基底細胞 (Japanese, exact)Unrated
petal primordia (exact, plural)Unrated petal primordiumUnrated portion of petal primordium tissue (exact)Unrated primordio de p&#233talo (Spanish, exact)Unrated 花弁原基（可視的） (Japanese, exact)Unrated
c&#233lula de la columela del caliptra de la ra&#237z (Spanish, exact)Unrated columella root cap cellUnrated 柱軸根冠細胞 (Japanese, exact)Unrated
vascular leaf anlagen formation stageUnrated vascular leaf founder cell formation stage (exact)Unrated
spermatogenous cellUnrated
c&#233lula intermediaria acompa&#241ante (Spanish, exact)Unrated intermediary cell (exact)Unrated intermediary companion cellUnrated 中間伴細胞 (Japanese, exact)Unrated
D megaspore degeneration stageUnrated
BO.02 mid boot stageUnrated
hood-shaped primordium stageUnrated
cotyledon primordia (exact, plural)Unrated cotyledon primordiumUnrated portion of cotyledon primordium tissue (exact)Unrated primordio de cotiled&#243n (Spanish, exact)Unrated 子葉原基（可視的）(Japanese, exact)Unrated
bract epidermal stomatal complex (exact)Unrated bract epidermis stomatal complex (exact)Unrated bract stomatal complexUnrated complejo estom&#225tico de la br&#225ctea (Spanish, exact)Unrated 苞気孔装置 (Japanese, exact)Unrated
BO.01 early boot stageUnrated
phyllome lamina teeth (exact, plural)Unrated phyllome lamina toothUnrated フィロム葉身tooth (Japanese, exact)Unrated
anther epidermis (exact)Unrated anther sac epidermis (exact)Unrated anther wall exotheciumUnrated exotecio de la pared de la antera (Spanish, exact)Unrated pollen sac exothecium (exact)Unrated 葯壁外皮 (Japanese, exact)Unrated
c&#233lula inicial del cortex/endodermis de la ra&#237z (Spanish, exact)Unrated root cortex-endodermis initial cellUnrated root cortex-endodermis initial (exact)Unrated root cortex-endodermis stem cell (exact)Unrated 根皮層内皮始原細胞 (Japanese, exact)Unrated
base de la br&#225ctea (Spanish, exact)Unrated bract baseUnrated 苞基部 (Japanese, exact)Unrated
lateral root spineUnrated
eje de tercero orden de la inflorescencia (Spanish, exact)Unrated secondary inflorescence branch (exact)Unrated second order inflorescence branch (exact)Unrated second order paraclade (exact)Unrated third order inflorescence axisUnrated
primary root tipUnrated punta de la ra&#237z primaria (Spanish, exact)Unrated 一次根端 (Japanese, exact)Unrated
c&#233lula del mes&#243filo en empalizada (Spanish, exact)Unrated palisade mesophyll cellUnrated 柵状葉肉細胞 (Japanese, exact)Unrated
&#243vulo del ovario (Spanish, exact)Unrated plant ovary ovuleUnrated 子房胚珠 (Japanese, exact)Unrated
vascular leaf post-expansion stageUnrated
margen del profilo (Spanish, exact)Unrated prophyll marginUnrated 前葉縁、前出葉縁 (Japanese, exact)Unrated
axillary shoot systemUnrated sistema axilar del epiblasto (epiblastema) (Spanish, exact)Unrated 腋苗条系 (Japanese, exact)Unrated
axial secondary xylem parenchymaUnrated axial wood parenchyma (exact)Unrated par&#233nquima axial de la madera (Spanish, exact)Unrated 軸方向二次木部柔組織 (Japanese, exact)Unrated
cápsula circuncisa (exact, Spanish)Unrated circumscissile capsule (exact)Unrated circumscissile capsule fruitUnrated deckelkapsel (exact, German)Unrated pyxis (exact)Unrated
anlagen del lod&#237culo (Spanish, exact)Unrated lodicule anlagenUnrated 鱗被原基 (Japanese, exact)Unrated
free tepalUnrated t&#233palo libre (Spanish, exact)Unrated 遊離花被片 (Japanese, exact)Unrated
fruit lid (exact)Unrated fruit opercula (exact, plural)Unrated fruit operculumUnrated op&#233rculo del fruto (Spanish, exact)Unrated 果蓋 (Japanese, exact)Unrated
cell death stage of secondary xylemUnrated etapa de muerte celular del xilema secundario (Spanish, exact)Unrated transition to heartwood stage (exact)Unrated 二次木部の細胞死段階 (Japanese, exact)Unrated
flower development stageUnrated
embryo hypophysisUnrated embryonic hypophysis (exact)Unrated hip&#243fisis (Spanish, exact)Unrated 胚原根層 (Japanese, exact)Unrated

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