• Scientific Name: Carya illinoinensis (Wangenh.) K.Koch
• Ref: Dendrologie 1:593. 1869
• Synonyms:
  • Carya angustifolia Sweet
  • C. diguetii Dode
  • C. oliviformis (Michx.f.) Nutt.
  • C. pecan (Marshall) Nutt.
  • C. pecan (Marshall) Engl. & Graebn.
  • C. tetraptera Liebm.
  • Hicorius diguetii Standl.
  • H. oliviformis (Michx.f.) Raf.
  • H. pecan (Marshall) Britton
  • Juglans alba var. pacana Castigl.
  • J. angustifolia Aiton
  • J. cylindrica Lam.
  • J. oliviformis Michx.f.
  • J. pecan Marshall
  • J. rubra Gaertn.
• English Common Name: pecan
• Chinese Common Name: 美国山核桃 Měiguó shān∙hétáo
• Japanese Common Name: ペカン pekan
• Family: Juglandaceae
• Genus: Carya
• Distribution: Cultivated. Fujian, Hebei, Henan, Hunan, Jiangsu, Jiangxi [native to United States]
• Photo: 09/14/2014, Hangzhou, Zhejiang

Trees to 50 m tall. Terminal buds with 4 or more false-valved scales, yellowish brown. Leaves 25-35 cm; petiole 4-8 cm, glabrous or glabrescent; rachis generally glabrous or glabrescent; leaflets (7 or)9-13(-17), lateral ones shortly petiolulate or sessile, blade ovate-lanceolate to elliptic-lanceolate or long elliptic, 7-18 × 2.5-4 cm, with scattered, peltate scales, abaxially pubescent or glabrescent, base oblique, broadly cuneate or subrounded, apex acuminate; terminal petiolule 5-25 mm. Male spikes 8-14 cm; peduncle nearly absent. Anthers sparsely pilose. Nuts ovoid-ellipsoid, 3-5 × 2-3 cm; husk without prominent wings; shell without longitudinal ridges, ca. 1 mm thick, 2-chambered at base, lacunae present. Fl. May, fr. Sep-Nov. 2n = 32, rarely 64. (Flora of China)

09/14/2014, Hangzhou, Zhejiang