| Salix calyculata | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Salicaceae |
| Genus: | Salix |
| Species: | S. calyculata |
| Binomial name | |
| Salix calyculata | |
Salix calyculata is a low shrub in the willow genus Salix with mostly 8 to 15 millimeter long leaf blades. The natural range of the species is in China, Sikkim, and Bhutan. A distinction is made between two varieties.
The species was described in 1860 by Joseph Dalton Hooker; an earlier but not recognized description comes from Nils Johan Andersson. [1] The specific epithet calyculata is derived from the Latin expression caliculus, a diminutive of calix and means "small calyx ". [2]
A distinction is made between two varieties: [3]
Salix calyculata is a low shrub with slightly upright branches. The leaves have a stalk about 2 to 5 millimeters long. The leaf blade is spatulate-egg-shaped, rarely from 5, mostly 8 to 15 millimeters long and from 5 mostly 6 to 9 millimeters wide, with a rounded tip, wedge-shaped base and a notched leaf margin. The upper side of the leaf is green and glabrous, the underside whitish and initially finely hairy. [3]
Male inflorescences are broadly elliptical catkins with glabrous, tongue-shaped-obovate bracts. Female catkins are elliptical, the bracts resemble those of the male catkins. The female flowers have an adaxial nectar gland. The ovary is elliptical, slightly obovate or ovate and bare. The fruits are bare capsules. [3]
The natural distribution area is in the south of Tibet, in the northwest of the Chinese province of Yunnan, in Bhutan, and in Sikkim on gravelly underground or in rock crevices. In China, the species is found at altitudes of 3400 to 4700 meters. [3]
Salix cathayana is a strongly branched shrub from the genus of the willow (Salix) with brown or gray-brown, young tomentose hairy branches. The leaf blades have lengths of 1.5 to 5.2 centimeters. The natural range of the species is in the north of China.
Salix annulifera is a small shrub from the genus of the willow (Salix) with up to 8 centimeter long leaf blades. The natural range of the species is in China.
Salix boseensis is a shrub from the genus of willow (Salix) with initially brownish, frosted and bare branches and 6 to 9 centimeters long leaf blades. The natural range of the species is in China.
Salix anticecrenata is a low, pillow-shaped shrub from the genus of willow (Salix) with about 1.5 centimeters long leaf blades. The natural range of the species is in Nepal and China.
Salix atopantha is a small shrub from the genus of the willow (Salix) with up to 4 centimeters long, dull brown leaf blades on top. The natural range of the species is in China.
Salix bhutanensis is a shrub or small tree from the genus of willow (Salix) found in Nepal, Bhutan, and Tibet. It has young, densely brownish green tomentose hairy branches and 3 to 5.5 centimeters long leaf blades.
Salix chienii is a large shrub or small tree in the willow genus Salix with initially light green and tomentose hairy and later reddish brown and balding branches. The leaf blades have lengths of 2 to 3.5 sometimes 5.5 centimeters. The natural range of the species is in China.
Salix cheilophila is a shrub or small tree from the genus of willow (Salix) with initially tomentose hairy and later balding branches. The leaf blades have lengths of 2.5 to sometimes 6 centimeters. The natural range of the species is in China.
Salix cupularis is a small shrub from the genus of the willow (Salix) with 1.5 to 2.7 centimeters long leaf blades. The natural range of the species is in China.
Salix daltoniana is a shrub or small tree from the genus of the willow with mostly 4.5 to 9 centimeters long leaf blades. The natural range of the species is in India, Nepal, Bhutan, and in Tibet.
Salix dalungensis is a small tree from the genus of willow (Salix) with mostly 4 to 5 centimeters long leaf blades. The natural range of the species is in Tibet.
Salix delavayana is a shrub or small tree from the genus willow (Salix) with mostly 3 to 8 centimeters long leaf blades. The natural range of the species is in the south of China and in Tibet.
Salix dibapha is a shrub from the genus of willow (Salix) with mostly 4 to 6 centimeters long leaf blades. The natural range of the species is in China.
Salix dissa is a low shrub from the genus willow (Salix) with usually 1 to 3 centimeters long leaf blades. The natural range of the species is in China.
Salix divergentistyla is a shrub or tree from the genus of willow (Salix) with mostly 3 to 4.5 centimeters long leaf blades. The natural range of the species is in Tibet.
Salix driophila is a shrub from the genus of willow (Salix). The natural range of the species is in China.
Salix erioclada is a species from the genus of willows (Salix) and grows as a shrub or small tree. The leaf blades have a length of about 5 centimeters. The natural range of the species is in China.
Salix eriostachya is a species from the genus of willows (Salix) and grows as a shrub. The leaf blades are 4 to 11 centimeters long. The natural range of the species is in India, Nepal, and China.
Salix ernestii is a species in the genus of willow (Salix) and grows as a shrub. The leaf blades are about 11 centimeters long. The natural range of the species is in China.
Salix blakii is a willow (Salix) shrub with thin, brownish and bare branches and 4 to 8 centimeters long leaf blades. The natural range of the species extends from Southwest Asia to China.