Big sand leaf

Big sand leaf

(essential preparation of raw herbs)

[synonym] Daye Mantianxing (manual of commonly used Chinese herbal medicine by Guangzhou Army).

[source] it is the stem and leaf of Rubiaceae.

[plant morphology] psammophila macrophylla

Shrubs, 1-4 m high; branchlets with ridges and distinct nodes. Leaves membranous, opposite, elliptic lanceolate, 8-15 cm long and 3-6 cm wide, apex acute acuminate, base cuneate, scattered with many prominent small "nevus spots" on leaves; stipules triangular, falling off or partly falling off. Flowers white, on top of branchlets; branchlets unequal in number of nodes, but usually 2; corymbs glabrous, 3-divergent, many flowered; peduncle ca. 2 cm long; calyx nearly campanulate, with inconspicuous denticles; corolla high pedunculate, tube narrowly cylindrical, 1.5 cm long, lobes 4, oblong, rotated; stamens 4, filaments short; ovary 2-locular, style linear, elongated. Drupe globose, ca. 6 mm in diam., black when dry, rugose. It blooms in autumn.

It grows in mountain, roadside, forest edge or under sparse forest. Distributed in Guangxi, Guangdong and other places.

[collection] all year round.

[chemical constituents] the leaves contain flavonoid glycosides, amino acids, sugars, γ - sitosterol, etc.

Bitter, pungent and cold.

① "Seeking the source of Materia Medica": "bitter, pungent, flat. "

② The Handbook of commonly used Chinese herbal medicine of Guangzhou Army: "bitter, cold,"

Functions and indications: clearing away heat and toxin, promoting blood circulation and removing blood stasis. It is used to treat summer heat, swelling, injury, wind, poison, scabies.

① "To cure flying sand, scabies and scabies". "

② "Lingnan medicine collection record": "treating wind and toxin, Sha distension. "

③ "Clearing heat and detoxifying, promoting blood circulation and removing blood stasis" is a common Chinese herbal medicine manual of Guangzhou army. Treatment of cold, fever, hepatitis, traumatic injury, prevention and treatment of heatstroke. "

[usage and dosage] oral administration: decoct Soup for 5-8 yuan, or decoct water for tea.