Croton lechleri is a species of flowering plant in the spurge family, Euphorbiaceae, that is native to northwestern South America. It is commonly known as sangre de grado (Peruvian Spanish), sangre de drago (Ecuadorian Spanish) or sangre de grada (Bolivian Spanish), both of which translate to "dragon's blood".Meza, E.N.(Editor). 1999. They refer to this tree's (and several related species') thick red latex. The latex has medicinal properties, and is used by local peoples as a liquid bandage, applied to seal wounds, as it dries quickly to form a protective skin-like barrier. Its use by native people has led to scientific study and observation of its in vitro antioxidant activity as well as both mutagenic and antimutagenic behavior. The latex also contains a number of chemicals, including taspine. Oligomeric proanthocyanidins, another kind of chemical contained in the latex, have been investigated for the treatment of HIV-associated diarrhea under the name crofelemer. In January 2013, crofelemer, under the trade name Mytesi, was approved by the FDA for the treatment of non-infectious diarrhea in HIV+ patients.
No narrative description available for this taxon yet.
Compounds documented for Croton lechleri across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
💊 Medicinal use documented
Compound class profile5 classes
Colensane and Clerodane diterpenoids12
Proanthocyanins8
Aporphine alkaloids $ Isoquinoline alkaloids7
Flavan-3-ols6
Stigmastane steroids5
Documented compounds141 total
Compound
Class
Amount
Source
PROANTHOCYANIDINS
900,000 ppm
DukesPhytochem
TASPINE
204,000 ppm
DukesPhytochem
SINOACUTINE
1 ppm
DukesPhytochem
05DNA & barcoding5 specimens
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Croton lechleri has left across the world's sequence archives.
At a glance
DNA specimens5
Marker genes4
GenBank sequences2
eDNA detections3
Countries2
The DNA barcodea real sequence read deposited for this species
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★rbcL★rbcLa★ITS2★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type942 records
Wild obs. + sensor178
Museum / vouchered764
Origin
Native25
Range
Area of Occupancy AOO1 456 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy77% within 1 km
≤100 m 38≤1 km 2≤10 km 9>10 km 3
52 georeferenced · 126 without coordinates
Open the mapobservation + sensor178
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy0% within 1 km
≤10 km 39>10 km 7
46 georeferenced · 718 without coordinates
Open the institutions mapphysical evidence764
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions26 of 54 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Saint Louis, US
236
Chicago, US
71
arosemena tola, EC
47
Bronx, US
44
QCNElocation not on record
41
Loja, EC
37
Instituto Amazónico de Investigaciones Científicas - SINCHIlocation not on record
33
Madison, US
30
Universidad Nacional de Colombia (UNAL)location not on record
26
University of Stellenboschlocation not on record
19
Davis, US
18
Barcelona, ES
18
Aarhus, DK
13
Kew, GB
12
Herbario Selva Central Oxapampa - estación biológica del Jardín Botánico de Missourilocation not on record
11
Universiti Sains Malaysialocation not on record
10
Austin, US
10
HUT Culture Collectionlocation not on record
7
ASUlocation not on record
6
Universidad de la Amazonia (UniAmazonia)location not on record
6
Riobamba, EC
6
Lima, PE
4
Iquitos, PE
4
Ann Arbor, US
4
Cincinnati, US
4
Fort Worth, US
3
UTPLlocation not on record
3
Göteborg, SE
2
Universidad Distrital Francisco José de Caldas (UDistrital)location not on record
2
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
2
Xiamen, CN
2
Universidad de Antioquia (UdeA)location not on record
2
BISHlocation not on record
2
Herbario de la Universidad Técnica del Nortelocation not on record
2
Vancouver, CA
2
CASlocation not on record
2
MAlocation not on record
1
IPA/SPlocation not on record
1
Cochabamba, BO
1
UFAClocation not on record
1
Universität Göttingenlocation not on record
1
Dirección Nacional Forestal, Ministerio de Agricultura y Ganaderíalocation not on record
1
South Kensington, GB
1
Herbario UTCEClocation not on record
1
Universität Tübingenlocation not on record
1
USP-IBlocation not on record
1
East Central Universitylocation not on record
1
Jena Microbial Resource Collectionlocation not on record
1
Provo, US
1
Quito, EC
1
Santa Cruz de la Sierra, BO
1
Mlocation not on record
1
Pittsburg, US
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
54 institutions · 759 of 764 vouchered records shown · 3 without an institution code
09Environmental DNA3 detections
Where the DNA of Croton lechleri was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found3
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map2 countries0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median19.1 °C 13.9–24.4
Seasonal swing summer↔winter1.70 °C
Max temp (day)23.0 °C 18.2–27.9
Min temp (night)15.5 °C 9.90–21.1
Precipitation139 mm/mo 135–143
Air humidity68.8 % 68.5–69.0
Moisture balance15.5 mm/mo 13.5–17.5
Vapour deficit747 Pa 509–984
Wind speed1.70 m/s 1.00–2.30
Cloud cover60.3 % 58.4–62.3
CHELSA 1981–2010, ~9 km grid, at location & month of 2 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.