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Family Lamiaceae
Sidit
Scutellaria luzonica Rolfe
HELMET FLOWER

Scientific names Common names
Scutellaria luzonica Rolfe Lupiñgan (Ig.)
Scutellaria javanica var. luzonica (Rolfe) H. Keng Sidit (Ig.)
Scutellaria luzonica var. lotungensis C. Y. Wu & C. Chen Helmet flower (Engl.)
Scutellaria marivelensis Elmer Skullcap (Engl.)
Scutellaria marivelensis Elmer is a synonym of Scutellaria javanica var. luzonica (Rolfe) H. Keng. The Plant List
Scutellaria javanica var. luzonica (Rolfe) H.Keng is an accepted name. The Plant List

Other vernacular names
VIETNAMESE: Thuan luzon.

Gen info
Scutellaria is a genus of flowering plants in the mint family, containing about 300 species, commonly known as "skullcaps." It derives from the Latin word scutella (small dish) referring to the shape of the calyx.

Botany
Sidit is a perennial, slender, slightly branched herb, often prostrate below. Leaves are ovate, 1 to 4 centimeters long, and 1 to 2.7 centimeters wide, with a blunt tip and rounded or somewhat heart-shaped base, and with hairs on both surfaces. Flowers are pale blue, borne in terminal racemes, and 2 to 5 centimeters long. Calyx is slightly hairy, with rounded lips, and about 2.2 centimeters long, enlarged upward, slightly curved, and slightly ciliate on the outside. Nutlets are about 1.6 millimeters long.

Distribution
- In ravines, on ridges in mossy forests, etc. at altitudes of 800 to 2,400 meters, and occasionally along mountain streams at lower elevations.
- Occurs in Cagayan, Abra, Bontoc, Benguet, Zambales, Bulacan, Bataan, Rizal, Batangas and Quezon Provinces in Luzon; and in Mindoro.

- Also occurs in New Guinea.

Constituents
- Plant yields a glucoside, scutellarin, like s. basicalensis, S. altissima, S indica and other species.
- Study of roots yielded 17 flavonoids: 13 flavones (1-13), two flavanones (14-15), a chalcone (2',4'-dihydroxy-3',6',2-trimethoxychalcone) (16), and a flavone glucoside (17). (6)

Uses
Folkloric
- In the Philippines, plant used as a cure for stomach pains.
- In the Mountain Province, administered in the form of decoction.
- Among the Kalanguya tribe of Tinoc, Ifugao, crushed leaves are applied to burns and scabies. Seeds are eaten to expel worms from the stomach. (2)

Studies
Flavonoids / Roots
.
Study of roots isolated
17 flavonoids. (see constituents above) (6)

Availability
Wild-crafted.

Updated October 2018 / March 2014

IMAGE SOURCE: / Scutellaria javanica (Veranda flowers). Location: Maui, Lowes Garden Center Kahului / File:Starr 080103-1357 Scutellaria javanica.jpg / Forest & Kim Starr / 3 Jan 2008 / Creative Commons Attribution/ click on image to go to source page / Wikimedia Commons

Additional Sources and Suggested Readings
(1)
Scutellaria / Wikipedia
(2)
BALANGCOD & BALANGCOD: HEALTHCARE PRACTICES AMONG THE KALANGUYA TRIBE IN PHILIPPINES / Teodora D Balangcod & Ashlyn Kim D Balangcod / Indian Journal of Traditional Knowledge Vol. 10 (2), April 2011, pp. 227-238
(3)
Flavonoids from the Roots of Scutellaria javanica Jungh var. luzonica / Lin,Y. L., J. C. Ou, C. F. Chen, and Y. H. Kuo, 1991. / J. Chin. Chem. Soc. 38 (6), 619-623.
(4)
Scutellaria javanica var. luzonica / Synonyms / The Plant List
(5)
Bioactive Flavonoid Derivatives from Scutellaria luzonica / Meng Bai, Cai-Juan Zheng, Li-Jun Wu, Xiao-Ping Song / Chemistry of Natural Compounds, April 2018; 54(2) / DOI: 10.1007/s10600-018-2342-y
(6)
Flavonoids from the Roots of Scutellaria Luzonica Rolfe / Yun-Lian Lin, Jun-chih Ou, Chieh-Fu Chen, Yueh Hsiung Kuo / Journal of the Chinese Chemical Society, Dec 1991; 38(6): pp 619-623 / https://doi.org/10.1002/jccs.199100101

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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