Salix lindleyana

Salix lindleyana
Habit
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Salicaceae
Genus: Salix
Species:
S. lindleyana
Binomial name
Salix lindleyana
Synonyms
List
    • Salix acuminatomicrophylla K.S.Hao
    • Salix acuminatomicrophylla K.S.Hao ex C.F.Fang & A.K.Skvortsov
    • Salix brachista C.K.Schneid.
    • Salix brachista var. integra C.Wang & C.F.Fang
    • Salix brachista var. pilifera N.Chao
    • Salix clavata Wall.
    • Salix crenata K.S.Hao
    • Salix crenata K.S.Hao ex C.F.Fang & A.K.Skvortsov
    • Salix ovatomicrophylla K.S.Hao ex C.F.Fang & A.K.Skvortsov
    • Salix pominica Z.Wang & P.Y.Fu
    • Salix souliei Seemen

Salix lindleyana, the creeping Himalayan willow, is a species of willow in the family Salicaceae, found in the Himalayas, from northeast Pakistan to Yunnan in China.[1][2]

Description

Salix lindleyana is a cushion-shaped shrub. The trunk is dull brown, short, twisted and can take root. The twigs are yellowish-brown, young twigs are short but very densely arranged. Young shoots are sparsely hairy and later balding. The vegetative buds are egg-shaped, small and hairless. The leaves grow close together and cover the branches. The petiole is about 4 millimeters long. The leathery leaf blade is ovate, about 8 millimeters long and usually 3.5, rarely up to 5 millimeters wide. The leaf margin is loosely but regularly serrated in a glandular manner, the leaf base is wedge-shaped, the tip rounded. The upper side of the leaf is green, shiny, glabrous and wrinkled, the underside is greenish and initially shaggy with hair. The central rib is sunk on the top and raised on the bottom.[3]

Very small catkins are formed as inflorescences from around five flowers. The bracts are yellowish green, obovate, membranous, and hairy on the upper side near the base along the leaf margin. The tip of the leaf is rounded. Male flowers have a cylindrical nectar gland adaxially and abaxially, the abaxial gland is thinner and sometimes bilobed. The two stamens are about 3.5 millimeters long and thus about 3 times longer than the bracts. The stamens are hairy at the base, the anthers are yellow. Female flowers have an adaxially lying, cylindrical nectar gland. The ovary is cylindrical, about 3 millimeters long, stalked long and about the same length as the bracts. The pen is short and two-piece, the scar is bilobed. The capsule fruits are long ovate. Salix crenata flowers in July, the fruits ripen in August and September.[3]

Subtaxa

The following forms are currently accepted:[1]

  • Salix lindleyana f. hebecarpa Kimura
  • Salix lindleyana f. lindleyana

References

  1. ^ a b c "Salix lindleyana Wall. ex Andersson". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 27 March 2021.
  2. ^ "Salix lindleyana Creeping Himalayan Willow". Collection Search Results. Bellevue Botanical Garden. Retrieved 27 March 2021.
  3. ^ a b Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix crenata, in der Flora of China, Band 4, S. 214