Burtt Davy 56 (1903)
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| Burtt Davy 56 herbarium gathering, Lichtenburg (1903) | |
|---|---|
| Burtt Davy 56 (1903) | |
| At a Glance | |
| Classification | Unknown |
| Location | |
| Country | South Africa |
| Province/State | North West |
| Locality | Lichtenburg |
| Coordinates | -26.125, 26.125 |
| Point type | Holder's georeference |
| Uncertainty | about 19 km |
| Collection | |
| Method | Herbarium specimen |
| Sourcing Type | Historical |
| Date | 18 March 1903 |
| Collector | J. Burtt Davy |
| Specimen | |
| Repository | National Herbarium (PRE) |
| Catalogue Number | PRE0372432-0 |
| Collector Number | Burtt Davy, J. 56 |
| Scientific Name | Cannabis sativa L. var. sativa |
- Point
- 26.12° S, 26.12° E
- Elevation used
- 1,497 m computed, GMTED2010 (1 km), at this point
- Köppen class
- BSk
- Clock
- UTC+2
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day and night | ||||||||||||
| First light | 05:11 | 05:36 | 05:54 | 06:08 | 06:22 | 06:35 | 06:37 | 06:21 | 05:50 | 05:17 | 04:54 | 04:52 |
| Sunrise | 05:36 | 06:00 | 06:17 | 06:31 | 06:46 | 07:00 | 07:02 | 06:45 | 06:13 | 05:41 | 05:19 | 05:18 |
| Sunset | 19:12 | 18:59 | 18:33 | 18:00 | 17:37 | 17:31 | 17:41 | 17:56 | 18:08 | 18:21 | 18:42 | 19:04 |
| Last light | 19:38 | 19:23 | 18:56 | 18:24 | 18:02 | 17:56 | 18:06 | 18:19 | 18:31 | 18:45 | 19:07 | 19:30 |
| Daylighth | 13h36 | 12h59 | 12h16 | 11h29 | 10h51 | 10h31 | 10h39 | 11h11 | 11h55 | 12h41 | 13h23 | 13h46 |
| Changemin/day | −0.8 | −1.4 | −1.6 | −1.4 | −1.0 | −0.2 | +0.7 | +1.3 | +1.5 | +1.5 | +1.2 | +0.3 |
| Temperature | ||||||||||||
| Avg daily high°C | 27 | 26 | 25 | 22 | 20 | 17 | 17 | 20 | 24 | 26 | 26 | 27 |
| Avg daily low°C | 16 | 16 | 14 | 11 | 7 | 4 | 4 | 6 | 10 | 13 | 14 | 16 |
| Swing°C | 10 | 10 | 10 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 |
| Water and light | ||||||||||||
| Rainmm | 106 | 89 | 84 | 37 | 18 | 7 | 4 | 6 | 13 | 49 | 68 | 104 |
| VPDkPa | 1.2 | 1.1 | 1.0 | 0.9 | 0.7 | 0.6 | 0.6 | 0.8 | 1.1 | 1.1 | 1.2 | 1.2 |
| Sunlightmol/m²/d | 51 | 47 | 42 | 36 | 32 | 28 | 31 | 37 | 45 | 49 | 51 | 53 |
| Field cycle | ||||||||||||
| Cycle | ||||||||||||
- Planting
- Growing
- Harvest
- Not recorded / off season
No field cycle is recorded on this accession's page.
Day and night computed from the sun's position on the 15th of each month; climate normals 1981–2010 from CHELSA V2.1 · About these figures
Burtt Davy 56 is a herbarium accession of Cannabis sativa collected at Lichtenburg in North West, South Africa, on 18 March 1903 by J. Burtt Davy. The National Herbarium (PRE) holds the sheet as PRE0372432-0.[1]
Collection and locality
The database gives the locality as LICHTENBURG.[1]
Specimen and identification
The sheet is filed as Cannabis sativa L. var. sativa.[1]
- ↑ 1.0 1.1 1.2 "Cannabis sativa L., barcode PRE0372432-0, in the Botanical Database of Southern Africa (BODATSA)". Plants of southern Africa. South African National Biodiversity Institute. Retrieved 23 September 2026.