• Scientific Name: Liriodendron tulipifera L.
• Ref: Sp. Pl.:535. 1753
• Synonyms:
  • Liriodendron fastigiatum Dippel
  • L. procerum Salisb.
  • L. truncatifolium Stokes
  • L. tulipifera var. acutilobum Michx.
  • L. tulipifera var. obtusilobum Michx.
  • Tulipifera liriodendrum Mill.
• English Common Name: tulip tree, American tulip tree, tulipwood, tuliptree, tulip poplar, whitewood, fiddletree, yellow-poplar
• Chinese Common Name: 北美鹅掌楸 Běiměi ézhǎng∙qiū
• Japanese Common Name: ユリノキ [百合の木] yurinoki
• Family: Magnoliaceae
• Genus: Liriodendron
• Distribution: Rich woodlands, bluffs, low mountains, and hills; 0-1500 m; S. Ontario to N. Central & E. U.S.A.
• Photo: 05/01/2017, Hangzhou Botanical Garden, Zhejiang

Trees , single-trunked, to 45 m. Bark light gray, thick, deeply furrowed. Stipules paired, light green, elliptic to oblanceolate, 20-45mm; petiole 5-11.5 cm. Leaf blade commonly with 2 shallow upper lobes and 2 lateral lobes at broadest part, or sometimes squarrose and barely lobed, (6.5-)7.5-15(-23.5) × (8.5-)12.5-18.5(-25.5) cm; surfaces abaxially glaucous, adaxially bright green. Flowers campanulate; spathaceous bract 1, brownish, notched; tepals erect, adaxial orange blotch sometimes gummy, outermost tepals green to glaucous; stamens 20-50, 40-50 mm; filaments white; pistils 60-100. Samaracetums 4.5-8.5 cm, with numerous (1-)2-seeded, imbricate samaras 3-5.5 × 0.5-1 cm, falling separately at maturity; receptacles with basal pistil persistent. Seeds (1-)2. 2 n =38. (Flora of China)

05/01/2017, Hangzhou Botanical Garden

05/01/2017, Hangzhou Botanical Garden