WHO monographs on selected medicinal plants - travolekar.ru

Ramulus cum Uncis Uncariae
Definition
Ramulus cum Uncis Uncariae consists of the dried hook-bearing stem
branch of Uncaria rhynchophylla (Miq.) Jacks, U. macrophylla Wall.,
U. hirsuta Havil., U. sinensis (Oliv.) Havil. or U. sessilifructus Roxb.
(Rubiaceae) (1–3).
Synonyms
Uncaria rhynchophylla (Miq.) Jacks, Nauclea rhynchophylla Miq., Ourouparia
rhynchophylla Matsum (4).
Selected vernacular names
Choto-ko, chotoko, cho-to-kou, gout eng, kagikazura (1, 4, 5).
Geographical distribution
Indigenous to China and Japan (6, 7).
Description
A deciduous twining shrub up to 10 m long. Branches brownish, glabrous,
occasionally bearing compressed, hooked thorns. Young stems
slender, square to slightly angular, glabrous. Stipules of the plagiotropic
shoot 6–10 mm long, those of the orthotropic shoot considerably larger,
up to 30 mm long, inside glabrous with glandular hairs at the base, outside
glabrous, margins entire, narrowly triangular, deeply bifid for over two
thirds of the length, lobes narrowly triangular to triangular-lanceolate.
Leaves opposite, ovate to ovate-oblong or elliptic to elliptic-oblong,
5–12 × 3–7 cm, membranous, glabrous on either side; apex acute to cuspidate;
base cuneate to truncate; lateral nerves 4–8 pairs, axils with sparsely
hairy domatia, tertiary nerves curved, impressed, ultimate venation
reticulate. Inflorescence an axillary or terminal peduncled solitary head.
Flowers yellow, subsessile on the receptacle. Hypanthium 1–2 mm,
densely hairy. Calyx 1 mm, pubescent; lobes oblong to slightly triangular,
0.5–1 mm, sparsely pubescent. Corolla tube 6–8 (6–10 mm), outside
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