- Scientific Name: Morus alba L.
- Ref: Sp. Pl.:986. 1753
- Synonyms:
- Morus alba var. emarginata Y.B.Wu
- M. alba ‘pendula’ (Risso) Sudw.
- M. alba f. skeletoniana (C.K.Schneid.) Rehder
- M. alba var. skeletoniana C.K.Schneid.
- M. atropurpurea Roxb.
- M. constantinopolitana Poir.
- M. cucullata Bonaf.
- M. dulcis Royle
- M. guzziola Steud.
- M. heterophylla Loudon
- M. intermedia Perr.
- M. kaki Lavallée
- M. levasseurei Lavallée
- M. lhou (Ser.) Koidz.
- M. lucida Loudon
- M. mariettii Steud.
- M. multicaulis (Perr.) Perr.
- M. nana Audib. ex Loisel.
- M. nigriformis (Bureau) Koidz.
- M. patavia Audib. ex Dippel
- M. patavina Spach
- M. pumila Balb.
- M. romana Lodd. ex Spach
- M. tokwa (Bureau) K.Koch
- M. venosa (Delile) Spach
- English Common Name: white mulberry
- Chinese Common Name: 桑 sāng, 桑树 sāngshù, 家桑 jiāsāng
- Japanese Common Name: マグワ [真桑] maguwa
- Family: Moraceae
- Genus: Morus
- Distribution: Originally endemic to C and N China, now cultivated throughout China [widely cultivated throughout the world].
- Photo: 09/2014, Is. Nanji, Zhejiang
Shrubs or trees, 3-10 m tall. Bark gray, shallowly furrowed. Branches finely hairy. Winter buds reddish brown, ovoid, finely hairy. Stipules lanceolate, 2-3.5 cm, densely covered with short pubescence. Petiole 1.5-5.5 cm, pubescent; leaf blade ovate to broadly ovate, irregularly lobed, 5-30 × 5-12 cm, abaxially sparsely pubescent along midvein or in tufts in axil of midvein and primary lateral veins, adaxially bright green and glabrous, base rounded to ± cordate, margin coarsely serrate to crenate, apex acute, acuminate, or obtuse. Male catkins pendulous, 2-3.5 cm, densely white hairy. Female catkins 1-2 cm, pubescent; peduncle 5-10 mm, pubescent. Male flowers: calyx lobes pale green, broadly elliptic; filaments inflexed in bud; anthers 2-loculed, globose to reniform. Female flowers: sessile; calyx lobes ovoid, ± compressed, with marginal hairs; ovary sessile, ovoid; style absent; stigmas with mastoidlike protuberance, branches divergent, papillose. Syncarp red when immature, blackish purple, purple, or greenish white when mature, ovoid, ellipsoid, or cylindric, 1-2.5 cm. Fl. Apr-May, fr. May-Aug. (Flora of China)
