Lasianthus hirsutus(Roxb.) Merr.

WFO wfo-0000223716 Accepted WFO 2026-06 5 photographs CC BY

Plate 1 figs. a–e · 2 observations

This species has been photographed under an open licence only 2 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Lasianthus hirsutus, photographed by Pieter Pelser
fig. a Pieter Pelser, CC BY 4.0 / 2018-09-06 / obs. 24433008

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
Royal Botanic Gardens, Kew
Accession
K001045799
Filed as
Lasianthus hirsutus (Roxb.) Merr.
Det. by
Napiroon, T.
Collected
Du, N.V., et al. 2008-10-24
Origin
VN
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 20 botanical countries

Regions where Lasianthus hirsutus is native: China Southeast, Hainan, Nansei-shoto, Taiwan, Andaman Is., Assam, Bangladesh, Borneo, Cambodia, Jawa, Laos, Malaya, Maluku, Myanmar, New Guinea, Nicobar Is., Philippines, Sumatera, Thailand, Vietnam China SoutheastHainanTaiwanAssamBangladeshBorneoCambodiaJawaLaosMalayaMalukuMyanmarNew GuineaPhilippinesSumateraThailandVietnam Nansei-shotoAndaman Is.Nicobar Is.
Native distribution of Lasianthus hirsutus, 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
Andaman Is. AND ASIA-TROPICAL
Assam ASS
Bangladesh BAN
Borneo BOR
Cambodia CBD
Jawa JAW
Laos LAO
Malaya MLY
Maluku MOL
Myanmar MYA
New Guinea NWG
Nicobar Is. NCB
Philippines PHI
Sumatera SUM
Thailand THA
Vietnam VIE
China Southeast CHS ASIA-TEMPERATE
Hainan CHH
Nansei-shoto NNS
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.

Where it actually grows measured, from 93 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 12.2 °C 16.5 °C 19.4 °C
Warmest month, mean daily high 26.9 °C 27.7 °C 29.2 °C
Annual rainfall 2,180 mm 2,785 mm 4,931 mm
Rainfall in the driest quarter 133 mm 144 mm 804 mm

It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 93 research-grade observations of Lasianthus hirsutus 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.

Also published as 14 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.

  • Echium connatum H.Lév.
  • Lasianthus bracteatus Wight
  • Lasianthus cyanocarpus var. asperatus Pierre ex Pit.
  • Lasianthus cyanocarpus var. bracteatus Pit.
  • Lasianthus cyanocarpus var. lucidulus Pierre ex Pit.
  • Lasianthus cyanocarpus var. novaguineensis Valeton
  • Lasianthus everettii Merr.
  • Lasianthus laevicaulis Kurz
  • Lasianthus oculus-cati var. polyneura Miq.
  • Lasianthus oculus-rati Miq.
  • Lasianthus roxburghii Wight
  • Mephitidia bracteata (Wight) Walp.
  • Triosteum himalayanum var. chinense Diels & Graebn.
  • Triosteum hirsutum Roxb.

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.