Scutellaria indicaL.

WFO wfo-0000307936 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Scutellaria indica, photographed by WATANABE Hitoshi 渡辺仁
fig. a WATANABE Hitoshi 渡辺仁, CC BY 4.0 / 2022-05-08 / obs. 196027563

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
00039668
Filed as
Scutellaria indica L.
Det. by
T. M. Koyama 1995-08-01
Collected
C. Wright
Origin
JP
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 18 botanical countries

Regions where Scutellaria indica is native: China South-Central, China Southeast, Japan, Korea, Taiwan, Cambodia, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, New Guinea, Philippines, Sulawesi, Sumatera, Thailand, Vietnam China South-CentralChina SoutheastJapanTaiwanCambodiaJawaLaosLesser Sunda Is.MalayaMalukuMyanmarNew GuineaPhilippinesSulawesiSumateraThailandVietnam Korea
Native distribution of Scutellaria indica, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Cambodia CBD ASIA-TROPICAL
Jawa JAW
Laos LAO
Lesser Sunda Is. LSI
Malaya MLY
Maluku MOL
Myanmar MYA
New Guinea NWG
Philippines PHI
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS
Japan JAP
Korea KOR
Taiwan TAI

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 140 in flower of 175 examined

Proportion of examined Scutellaria indica in flower, by month
Month In flower Examined Share 95% interval
Jan 17 20 85% 64% to 95%
Feb 21 21 100% 85% to 100%
Mar 53 57 93% 83% to 97%
Apr 23 31 74% 57% to 86%
May 6 7 86% 49% to 97%
Jun 2 6 33% 10% to 70%
Jul 3 6 50% 19% to 81%
Aug 4 10 40% 17% to 69%
Sep 3 5 60% 23% to 88%
Oct 3 3 too few examined
Nov 4 6 67% 30% to 90%
Dec 1 3 too few examined

Peak flowering in Feb. Each bar is the share of Scutellaria indica observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 140 of 175 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 2 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 1,046 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -1.0 °C 11.1 °C 14.0 °C
Warmest month, mean daily high 22.5 °C 28.7 °C 31.2 °C
Annual rainfall 1,324 mm 3,300 mm 4,376 mm
Rainfall in the driest quarter 93 mm 322 mm 828 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 1,046 research-grade observations of Scutellaria indica that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 25 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Scutellaria copelandii Merr.
  • Scutellaria indica f. alba M.Kim
  • Scutellaria indica f. alba (H.Hara) Sugim.
  • Scutellaria indica f. coccinea (S.Kim & S.Lee) M.Kim
  • Scutellaria indica f. leucantha T.Yamaz.
  • Scutellaria indica f. lilacina (H.Hara) Sugim.
  • Scutellaria indica f. ramosa C.Y.Wu & C.Chen
  • Scutellaria indica f. subacaulis Y.Z.Sun ex C.H.Hu
  • Scutellaria indica var. alba S.Kim & S.Lee
  • Scutellaria indica var. coccinea S.Kim & S.Lee
  • Scutellaria indica var. glabrescens Pamp.
  • Scutellaria indica var. parvifolia (Makino) Makino
  • Scutellaria indica var. satokoae Wakas. & Naruh.
  • Scutellaria indica var. typica Kudô
  • Scutellaria leucodasys Miq.
  • Scutellaria microflora Metcalf
  • Scutellaria parvifolia (Makino) Koidz.
  • Scutellaria parvifolia f. alba H.Hara
  • Scutellaria parvifolia f. lilacina H.Hara
  • Scutellaria parvifolia var. glabra H.Hara
  • Scutellaria parvifolia var. pilosella H.Hara
  • Scutellaria parvifolia var. vulgaris H.Hara
  • Scutellaria tashiroi Hayata
  • Scutellaria tashiroi var. haianshanensis T.Yamaz.

and 1 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.